Remove leftover static assets specific to individual blog posts

7 files changed, 0 insertions, 3222 deletions

diff --git a/src/http/static/viz/2/goog/html/safehtml.js b/src/http/static/viz/2/goog/html/safehtml.js
deleted file mode 100644
index 4bffbff..0000000
--- a/src/http/static/viz/2/goog/html/safehtml.js
+++ /dev/null
@@ -1,994 +0,0 @@
-// Copyright 2013 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-
-/**
- * @fileoverview The SafeHtml type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.SafeHtml');
-
-goog.require('goog.array');
-goog.require('goog.asserts');
-goog.require('goog.dom.TagName');
-goog.require('goog.dom.tags');
-goog.require('goog.html.SafeScript');
-goog.require('goog.html.SafeStyle');
-goog.require('goog.html.SafeStyleSheet');
-goog.require('goog.html.SafeUrl');
-goog.require('goog.html.TrustedResourceUrl');
-goog.require('goog.i18n.bidi.Dir');
-goog.require('goog.i18n.bidi.DirectionalString');
-goog.require('goog.labs.userAgent.browser');
-goog.require('goog.object');
-goog.require('goog.string');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A string that is safe to use in HTML context in DOM APIs and HTML documents.
- *
- * A SafeHtml is a string-like object that carries the security type contract
- * that its value as a string will not cause untrusted script execution when
- * evaluated as HTML in a browser.
- *
- * Values of this type are guaranteed to be safe to use in HTML contexts,
- * such as, assignment to the innerHTML DOM property, or interpolation into
- * a HTML template in HTML PC_DATA context, in the sense that the use will not
- * result in a Cross-Site-Scripting vulnerability.
- *
- * Instances of this type must be created via the factory methods
- * ({@code goog.html.SafeHtml.create}, {@code goog.html.SafeHtml.htmlEscape}),
- * etc and not by invoking its constructor.  The constructor intentionally
- * takes no parameters and the type is immutable; hence only a default instance
- * corresponding to the empty string can be obtained via constructor invocation.
- *
- * @see goog.html.SafeHtml#create
- * @see goog.html.SafeHtml#htmlEscape
- * @constructor
- * @final
- * @struct
- * @implements {goog.i18n.bidi.DirectionalString}
- * @implements {goog.string.TypedString}
- */
-goog.html.SafeHtml = function() {
-  /**
-   * The contained value of this SafeHtml.  The field has a purposely ugly
-   * name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.SafeHtml#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.SAFE_HTML_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-
-  /**
-   * This SafeHtml's directionality, or null if unknown.
-   * @private {?goog.i18n.bidi.Dir}
-   */
-  this.dir_ = null;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeHtml.prototype.implementsGoogI18nBidiDirectionalString = true;
-
-
-/** @override */
-goog.html.SafeHtml.prototype.getDirection = function() {
-  return this.dir_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeHtml.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Returns this SafeHtml's value as string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code SafeHtml}, use {@code goog.html.SafeHtml.unwrap} instead of
- * this method. If in doubt, assume that it's security relevant. In particular,
- * note that goog.html functions which return a goog.html type do not guarantee
- * that the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
- * // instanceof goog.html.SafeHtml.
- * </pre>
- *
- * @see goog.html.SafeHtml#unwrap
- * @override
- */
-goog.html.SafeHtml.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a SafeHtml, use
-   * {@code goog.html.SafeHtml.unwrap}.
-   *
-   * @see goog.html.SafeHtml#unwrap
-   * @override
-   */
-  goog.html.SafeHtml.prototype.toString = function() {
-    return 'SafeHtml{' + this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ +
-        '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a SafeHtml
- * object, and returns its value.
- * @param {!goog.html.SafeHtml} safeHtml The object to extract from.
- * @return {string} The SafeHtml object's contained string, unless the run-time
- *     type check fails. In that case, {@code unwrap} returns an innocuous
- *     string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.SafeHtml.unwrap = function(safeHtml) {
-  // Perform additional run-time type-checking to ensure that safeHtml is indeed
-  // an instance of the expected type.  This provides some additional protection
-  // against security bugs due to application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (safeHtml instanceof goog.html.SafeHtml &&
-      safeHtml.constructor === goog.html.SafeHtml &&
-      safeHtml.SAFE_HTML_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return safeHtml.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type SafeHtml, got \'' +
-        safeHtml + '\' of type ' + goog.typeOf(safeHtml));
-    return 'type_error:SafeHtml';
-  }
-};
-
-
-/**
- * Shorthand for union of types that can sensibly be converted to strings
- * or might already be SafeHtml (as SafeHtml is a goog.string.TypedString).
- * @private
- * @typedef {string|number|boolean|!goog.string.TypedString|
- *           !goog.i18n.bidi.DirectionalString}
- */
-goog.html.SafeHtml.TextOrHtml_;
-
-
-/**
- * Returns HTML-escaped text as a SafeHtml object.
- *
- * If text is of a type that implements
- * {@code goog.i18n.bidi.DirectionalString}, the directionality of the new
- * {@code SafeHtml} object is set to {@code text}'s directionality, if known.
- * Otherwise, the directionality of the resulting SafeHtml is unknown (i.e.,
- * {@code null}).
- *
- * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text to escape. If
- *     the parameter is of type SafeHtml it is returned directly (no escaping
- *     is done).
- * @return {!goog.html.SafeHtml} The escaped text, wrapped as a SafeHtml.
- */
-goog.html.SafeHtml.htmlEscape = function(textOrHtml) {
-  if (textOrHtml instanceof goog.html.SafeHtml) {
-    return textOrHtml;
-  }
-  var dir = null;
-  if (textOrHtml.implementsGoogI18nBidiDirectionalString) {
-    dir = textOrHtml.getDirection();
-  }
-  var textAsString;
-  if (textOrHtml.implementsGoogStringTypedString) {
-    textAsString = textOrHtml.getTypedStringValue();
-  } else {
-    textAsString = String(textOrHtml);
-  }
-  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-      goog.string.htmlEscape(textAsString), dir);
-};
-
-
-/**
- * Returns HTML-escaped text as a SafeHtml object, with newlines changed to
- * &lt;br&gt;.
- * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text to escape. If
- *     the parameter is of type SafeHtml it is returned directly (no escaping
- *     is done).
- * @return {!goog.html.SafeHtml} The escaped text, wrapped as a SafeHtml.
- */
-goog.html.SafeHtml.htmlEscapePreservingNewlines = function(textOrHtml) {
-  if (textOrHtml instanceof goog.html.SafeHtml) {
-    return textOrHtml;
-  }
-  var html = goog.html.SafeHtml.htmlEscape(textOrHtml);
-  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-      goog.string.newLineToBr(goog.html.SafeHtml.unwrap(html)),
-      html.getDirection());
-};
-
-
-/**
- * Returns HTML-escaped text as a SafeHtml object, with newlines changed to
- * &lt;br&gt; and escaping whitespace to preserve spatial formatting. Character
- * entity #160 is used to make it safer for XML.
- * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text to escape. If
- *     the parameter is of type SafeHtml it is returned directly (no escaping
- *     is done).
- * @return {!goog.html.SafeHtml} The escaped text, wrapped as a SafeHtml.
- */
-goog.html.SafeHtml.htmlEscapePreservingNewlinesAndSpaces = function(
-    textOrHtml) {
-  if (textOrHtml instanceof goog.html.SafeHtml) {
-    return textOrHtml;
-  }
-  var html = goog.html.SafeHtml.htmlEscape(textOrHtml);
-  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-      goog.string.whitespaceEscape(goog.html.SafeHtml.unwrap(html)),
-      html.getDirection());
-};
-
-
-/**
- * Coerces an arbitrary object into a SafeHtml object.
- *
- * If {@code textOrHtml} is already of type {@code goog.html.SafeHtml}, the same
- * object is returned. Otherwise, {@code textOrHtml} is coerced to string, and
- * HTML-escaped. If {@code textOrHtml} is of a type that implements
- * {@code goog.i18n.bidi.DirectionalString}, its directionality, if known, is
- * preserved.
- *
- * @param {!goog.html.SafeHtml.TextOrHtml_} textOrHtml The text or SafeHtml to
- *     coerce.
- * @return {!goog.html.SafeHtml} The resulting SafeHtml object.
- * @deprecated Use goog.html.SafeHtml.htmlEscape.
- */
-goog.html.SafeHtml.from = goog.html.SafeHtml.htmlEscape;
-
-
-/**
- * @const
- * @private
- */
-goog.html.SafeHtml.VALID_NAMES_IN_TAG_ = /^[a-zA-Z0-9-]+$/;
-
-
-/**
- * Set of attributes containing URL as defined at
- * http://www.w3.org/TR/html5/index.html#attributes-1.
- * @private @const {!Object<string,boolean>}
- */
-goog.html.SafeHtml.URL_ATTRIBUTES_ = goog.object.createSet(
-    'action', 'cite', 'data', 'formaction', 'href', 'manifest', 'poster',
-    'src');
-
-
-/**
- * Tags which are unsupported via create(). They might be supported via a
- * tag-specific create method. These are tags which might require a
- * TrustedResourceUrl in one of their attributes or a restricted type for
- * their content.
- * @private @const {!Object<string,boolean>}
- */
-goog.html.SafeHtml.NOT_ALLOWED_TAG_NAMES_ = goog.object.createSet(
-    goog.dom.TagName.APPLET, goog.dom.TagName.BASE, goog.dom.TagName.EMBED,
-    goog.dom.TagName.IFRAME, goog.dom.TagName.LINK, goog.dom.TagName.MATH,
-    goog.dom.TagName.META, goog.dom.TagName.OBJECT, goog.dom.TagName.SCRIPT,
-    goog.dom.TagName.STYLE, goog.dom.TagName.SVG, goog.dom.TagName.TEMPLATE);
-
-
-/**
- * @typedef {string|number|goog.string.TypedString|
- *     goog.html.SafeStyle.PropertyMap|undefined}
- */
-goog.html.SafeHtml.AttributeValue;
-
-
-/**
- * Creates a SafeHtml content consisting of a tag with optional attributes and
- * optional content.
- *
- * For convenience tag names and attribute names are accepted as regular
- * strings, instead of goog.string.Const. Nevertheless, you should not pass
- * user-controlled values to these parameters. Note that these parameters are
- * syntactically validated at runtime, and invalid values will result in
- * an exception.
- *
- * Example usage:
- *
- * goog.html.SafeHtml.create('br');
- * goog.html.SafeHtml.create('div', {'class': 'a'});
- * goog.html.SafeHtml.create('p', {}, 'a');
- * goog.html.SafeHtml.create('p', {}, goog.html.SafeHtml.create('br'));
- *
- * goog.html.SafeHtml.create('span', {
- *   'style': {'margin': '0'}
- * });
- *
- * To guarantee SafeHtml's type contract is upheld there are restrictions on
- * attribute values and tag names.
- *
- * - For attributes which contain script code (on*), a goog.string.Const is
- *   required.
- * - For attributes which contain style (style), a goog.html.SafeStyle or a
- *   goog.html.SafeStyle.PropertyMap is required.
- * - For attributes which are interpreted as URLs (e.g. src, href) a
- *   goog.html.SafeUrl, goog.string.Const or string is required. If a string
- *   is passed, it will be sanitized with SafeUrl.sanitize().
- * - For tags which can load code or set security relevant page metadata,
- *   more specific goog.html.SafeHtml.create*() functions must be used. Tags
- *   which are not supported by this function are applet, base, embed, iframe,
- *   link, math, object, script, style, svg, and template.
- *
- * @param {!goog.dom.TagName|string} tagName The name of the tag. Only tag names
- *     consisting of [a-zA-Z0-9-] are allowed. Tag names documented above are
- *     disallowed.
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- *     Mapping from attribute names to their values. Only attribute names
- *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
- *     the attribute to be omitted.
- * @param {!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content Content to
- *     HTML-escape and put inside the tag. This must be empty for void tags
- *     like <br>. Array elements are concatenated.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- * @throws {Error} If invalid tag name, attribute name, or attribute value is
- *     provided.
- * @throws {goog.asserts.AssertionError} If content for void tag is provided.
- */
-goog.html.SafeHtml.create = function(tagName, opt_attributes, opt_content) {
-  goog.html.SafeHtml.verifyTagName(String(tagName));
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      String(tagName), opt_attributes, opt_content);
-};
-
-
-/**
- * Verifies if the tag name is valid and if it doesn't change the context.
- * E.g. STRONG is fine but SCRIPT throws because it changes context. See
- * goog.html.SafeHtml.create for an explanation of allowed tags.
- * @param {string} tagName
- * @throws {Error} If invalid tag name is provided.
- * @package
- */
-goog.html.SafeHtml.verifyTagName = function(tagName) {
-  if (!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(tagName)) {
-    throw Error('Invalid tag name <' + tagName + '>.');
-  }
-  if (tagName.toUpperCase() in goog.html.SafeHtml.NOT_ALLOWED_TAG_NAMES_) {
-    throw Error('Tag name <' + tagName + '> is not allowed for SafeHtml.');
-  }
-};
-
-
-/**
- * Creates a SafeHtml representing an iframe tag.
- *
- * This by default restricts the iframe as much as possible by setting the
- * sandbox attribute to the empty string. If the iframe requires less
- * restrictions, set the sandbox attribute as tight as possible, but do not rely
- * on the sandbox as a security feature because it is not supported by older
- * browsers. If a sandbox is essential to security (e.g. for third-party
- * frames), use createSandboxIframe which checks for browser support.
- *
- * @see https://developer.mozilla.org/en/docs/Web/HTML/Element/iframe#attr-sandbox
- *
- * @param {?goog.html.TrustedResourceUrl=} opt_src The value of the src
- *     attribute. If null or undefined src will not be set.
- * @param {?goog.html.SafeHtml=} opt_srcdoc The value of the srcdoc attribute.
- *     If null or undefined srcdoc will not be set.
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- *     Mapping from attribute names to their values. Only attribute names
- *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
- *     the attribute to be omitted.
- * @param {!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content Content to
- *     HTML-escape and put inside the tag. Array elements are concatenated.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- * @throws {Error} If invalid tag name, attribute name, or attribute value is
- *     provided. If opt_attributes contains the src or srcdoc attributes.
- */
-goog.html.SafeHtml.createIframe = function(
-    opt_src, opt_srcdoc, opt_attributes, opt_content) {
-  if (opt_src) {
-    // Check whether this is really TrustedResourceUrl.
-    goog.html.TrustedResourceUrl.unwrap(opt_src);
-  }
-
-  var fixedAttributes = {};
-  fixedAttributes['src'] = opt_src || null;
-  fixedAttributes['srcdoc'] =
-      opt_srcdoc && goog.html.SafeHtml.unwrap(opt_srcdoc);
-  var defaultAttributes = {'sandbox': ''};
-  var attributes = goog.html.SafeHtml.combineAttributes(
-      fixedAttributes, defaultAttributes, opt_attributes);
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      'iframe', attributes, opt_content);
-};
-
-
-/**
- * Creates a SafeHtml representing a sandboxed iframe tag.
- *
- * The sandbox attribute is enforced in its most restrictive mode, an empty
- * string. Consequently, the security requirements for the src and srcdoc
- * attributes are relaxed compared to SafeHtml.createIframe. This function
- * will throw on browsers that do not support the sandbox attribute, as
- * determined by SafeHtml.canUseSandboxIframe.
- *
- * The SafeHtml returned by this function can trigger downloads with no
- * user interaction on Chrome (though only a few, further attempts are blocked).
- * Firefox and IE will block all downloads from the sandbox.
- *
- * @see https://developer.mozilla.org/en/docs/Web/HTML/Element/iframe#attr-sandbox
- * @see https://lists.w3.org/Archives/Public/public-whatwg-archive/2013Feb/0112.html
- *
- * @param {string|!goog.html.SafeUrl=} opt_src The value of the src
- *     attribute. If null or undefined src will not be set.
- * @param {string=} opt_srcdoc The value of the srcdoc attribute.
- *     If null or undefined srcdoc will not be set. Will not be sanitized.
- * @param {!Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- *     Mapping from attribute names to their values. Only attribute names
- *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
- *     the attribute to be omitted.
- * @param {!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content Content to
- *     HTML-escape and put inside the tag. Array elements are concatenated.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- * @throws {Error} If invalid tag name, attribute name, or attribute value is
- *     provided. If opt_attributes contains the src, srcdoc or sandbox
- *     attributes. If browser does not support the sandbox attribute on iframe.
- */
-goog.html.SafeHtml.createSandboxIframe = function(
-    opt_src, opt_srcdoc, opt_attributes, opt_content) {
-  if (!goog.html.SafeHtml.canUseSandboxIframe()) {
-    throw new Error('The browser does not support sandboxed iframes.');
-  }
-
-  var fixedAttributes = {};
-  if (opt_src) {
-    // Note that sanitize is a no-op on SafeUrl.
-    fixedAttributes['src'] =
-        goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(opt_src));
-  } else {
-    fixedAttributes['src'] = null;
-  }
-  fixedAttributes['srcdoc'] = opt_srcdoc || null;
-  fixedAttributes['sandbox'] = '';
-  var attributes =
-      goog.html.SafeHtml.combineAttributes(fixedAttributes, {}, opt_attributes);
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      'iframe', attributes, opt_content);
-};
-
-
-/**
- * Checks if the user agent supports sandboxed iframes.
- * @return {boolean}
- */
-goog.html.SafeHtml.canUseSandboxIframe = function() {
-  return goog.global['HTMLIFrameElement'] &&
-      ('sandbox' in goog.global['HTMLIFrameElement'].prototype);
-};
-
-
-/**
- * Creates a SafeHtml representing a script tag with the src attribute.
- * @param {!goog.html.TrustedResourceUrl} src The value of the src
- * attribute.
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=}
- * opt_attributes
- *     Mapping from attribute names to their values. Only attribute names
- *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined
- *     causes the attribute to be omitted.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- * @throws {Error} If invalid attribute name or value is provided. If
- *     opt_attributes contains the src attribute.
- */
-goog.html.SafeHtml.createScriptSrc = function(src, opt_attributes) {
-  // TODO(mlourenco): The charset attribute should probably be blocked. If
-  // its value is attacker controlled, the script contains attacker controlled
-  // sub-strings (even if properly escaped) and the server does not set charset
-  // then XSS is likely possible.
-  // https://html.spec.whatwg.org/multipage/scripting.html#dom-script-charset
-
-  // Check whether this is really TrustedResourceUrl.
-  goog.html.TrustedResourceUrl.unwrap(src);
-
-  var fixedAttributes = {'src': src};
-  var defaultAttributes = {};
-  var attributes = goog.html.SafeHtml.combineAttributes(
-      fixedAttributes, defaultAttributes, opt_attributes);
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      'script', attributes);
-};
-
-
-/**
- * Creates a SafeHtml representing a script tag. Does not allow the language,
- * src, text or type attributes to be set.
- * @param {!goog.html.SafeScript|!Array<!goog.html.SafeScript>}
- *     script Content to put inside the tag. Array elements are
- *     concatenated.
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- *     Mapping from attribute names to their values. Only attribute names
- *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
- *     the attribute to be omitted.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- * @throws {Error} If invalid attribute name or attribute value is provided. If
- *     opt_attributes contains the language, src, text or type attribute.
- */
-goog.html.SafeHtml.createScript = function(script, opt_attributes) {
-  for (var attr in opt_attributes) {
-    var attrLower = attr.toLowerCase();
-    if (attrLower == 'language' || attrLower == 'src' || attrLower == 'text' ||
-        attrLower == 'type') {
-      throw Error('Cannot set "' + attrLower + '" attribute');
-    }
-  }
-
-  var content = '';
-  script = goog.array.concat(script);
-  for (var i = 0; i < script.length; i++) {
-    content += goog.html.SafeScript.unwrap(script[i]);
-  }
-  // Convert to SafeHtml so that it's not HTML-escaped. This is safe because
-  // as part of its contract, SafeScript should have no dangerous '<'.
-  var htmlContent =
-      goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-          content, goog.i18n.bidi.Dir.NEUTRAL);
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      'script', opt_attributes, htmlContent);
-};
-
-
-/**
- * Creates a SafeHtml representing a style tag. The type attribute is set
- * to "text/css".
- * @param {!goog.html.SafeStyleSheet|!Array<!goog.html.SafeStyleSheet>}
- *     styleSheet Content to put inside the tag. Array elements are
- *     concatenated.
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- *     Mapping from attribute names to their values. Only attribute names
- *     consisting of [a-zA-Z0-9-] are allowed. Value of null or undefined causes
- *     the attribute to be omitted.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- * @throws {Error} If invalid attribute name or attribute value is provided. If
- *     opt_attributes contains the type attribute.
- */
-goog.html.SafeHtml.createStyle = function(styleSheet, opt_attributes) {
-  var fixedAttributes = {'type': 'text/css'};
-  var defaultAttributes = {};
-  var attributes = goog.html.SafeHtml.combineAttributes(
-      fixedAttributes, defaultAttributes, opt_attributes);
-
-  var content = '';
-  styleSheet = goog.array.concat(styleSheet);
-  for (var i = 0; i < styleSheet.length; i++) {
-    content += goog.html.SafeStyleSheet.unwrap(styleSheet[i]);
-  }
-  // Convert to SafeHtml so that it's not HTML-escaped. This is safe because
-  // as part of its contract, SafeStyleSheet should have no dangerous '<'.
-  var htmlContent =
-      goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-          content, goog.i18n.bidi.Dir.NEUTRAL);
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      'style', attributes, htmlContent);
-};
-
-
-/**
- * Creates a SafeHtml representing a meta refresh tag.
- * @param {!goog.html.SafeUrl|string} url Where to redirect. If a string is
- *     passed, it will be sanitized with SafeUrl.sanitize().
- * @param {number=} opt_secs Number of seconds until the page should be
- *     reloaded. Will be set to 0 if unspecified.
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- */
-goog.html.SafeHtml.createMetaRefresh = function(url, opt_secs) {
-
-  // Note that sanitize is a no-op on SafeUrl.
-  var unwrappedUrl = goog.html.SafeUrl.unwrap(goog.html.SafeUrl.sanitize(url));
-
-  if (goog.labs.userAgent.browser.isIE() ||
-      goog.labs.userAgent.browser.isEdge()) {
-    // IE/EDGE can't parse the content attribute if the url contains a
-    // semicolon. We can fix this by adding quotes around the url, but then we
-    // can't parse quotes in the URL correctly. Also, it seems that IE/EDGE
-    // did not unescape semicolons in these URLs at some point in the past. We
-    // take a best-effort approach.
-    //
-    // If the URL has semicolons (which may happen in some cases, see
-    // http://www.w3.org/TR/1999/REC-html401-19991224/appendix/notes.html#h-B.2
-    // for instance), wrap it in single quotes to protect the semicolons.
-    // If the URL has semicolons and single quotes, url-encode the single quotes
-    // as well.
-    //
-    // This is imperfect. Notice that both ' and ; are reserved characters in
-    // URIs, so this could do the wrong thing, but at least it will do the wrong
-    // thing in only rare cases.
-    if (goog.string.contains(unwrappedUrl, ';')) {
-      unwrappedUrl = "'" + unwrappedUrl.replace(/'/g, '%27') + "'";
-    }
-  }
-  var attributes = {
-    'http-equiv': 'refresh',
-    'content': (opt_secs || 0) + '; url=' + unwrappedUrl
-  };
-
-  // This function will handle the HTML escaping for attributes.
-  return goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse(
-      'meta', attributes);
-};
-
-
-/**
- * @param {string} tagName The tag name.
- * @param {string} name The attribute name.
- * @param {!goog.html.SafeHtml.AttributeValue} value The attribute value.
- * @return {string} A "name=value" string.
- * @throws {Error} If attribute value is unsafe for the given tag and attribute.
- * @private
- */
-goog.html.SafeHtml.getAttrNameAndValue_ = function(tagName, name, value) {
-  // If it's goog.string.Const, allow any valid attribute name.
-  if (value instanceof goog.string.Const) {
-    value = goog.string.Const.unwrap(value);
-  } else if (name.toLowerCase() == 'style') {
-    value = goog.html.SafeHtml.getStyleValue_(value);
-  } else if (/^on/i.test(name)) {
-    // TODO(jakubvrana): Disallow more attributes with a special meaning.
-    throw Error(
-        'Attribute "' + name + '" requires goog.string.Const value, "' + value +
-        '" given.');
-    // URL attributes handled differently according to tag.
-  } else if (name.toLowerCase() in goog.html.SafeHtml.URL_ATTRIBUTES_) {
-    if (value instanceof goog.html.TrustedResourceUrl) {
-      value = goog.html.TrustedResourceUrl.unwrap(value);
-    } else if (value instanceof goog.html.SafeUrl) {
-      value = goog.html.SafeUrl.unwrap(value);
-    } else if (goog.isString(value)) {
-      value = goog.html.SafeUrl.sanitize(value).getTypedStringValue();
-    } else {
-      throw Error(
-          'Attribute "' + name + '" on tag "' + tagName +
-          '" requires goog.html.SafeUrl, goog.string.Const, or string,' +
-          ' value "' + value + '" given.');
-    }
-  }
-
-  // Accept SafeUrl, TrustedResourceUrl, etc. for attributes which only require
-  // HTML-escaping.
-  if (value.implementsGoogStringTypedString) {
-    // Ok to call getTypedStringValue() since there's no reliance on the type
-    // contract for security here.
-    value = value.getTypedStringValue();
-  }
-
-  goog.asserts.assert(
-      goog.isString(value) || goog.isNumber(value),
-      'String or number value expected, got ' + (typeof value) +
-          ' with value: ' + value);
-  return name + '="' + goog.string.htmlEscape(String(value)) + '"';
-};
-
-
-/**
- * Gets value allowed in "style" attribute.
- * @param {!goog.html.SafeHtml.AttributeValue} value It could be SafeStyle or a
- *     map which will be passed to goog.html.SafeStyle.create.
- * @return {string} Unwrapped value.
- * @throws {Error} If string value is given.
- * @private
- */
-goog.html.SafeHtml.getStyleValue_ = function(value) {
-  if (!goog.isObject(value)) {
-    throw Error(
-        'The "style" attribute requires goog.html.SafeStyle or map ' +
-        'of style properties, ' + (typeof value) + ' given: ' + value);
-  }
-  if (!(value instanceof goog.html.SafeStyle)) {
-    // Process the property bag into a style object.
-    value = goog.html.SafeStyle.create(value);
-  }
-  return goog.html.SafeStyle.unwrap(value);
-};
-
-
-/**
- * Creates a SafeHtml content with known directionality consisting of a tag with
- * optional attributes and optional content.
- * @param {!goog.i18n.bidi.Dir} dir Directionality.
- * @param {string} tagName
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- * @param {!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>=} opt_content
- * @return {!goog.html.SafeHtml} The SafeHtml content with the tag.
- */
-goog.html.SafeHtml.createWithDir = function(
-    dir, tagName, opt_attributes, opt_content) {
-  var html = goog.html.SafeHtml.create(tagName, opt_attributes, opt_content);
-  html.dir_ = dir;
-  return html;
-};
-
-
-/**
- * Creates a new SafeHtml object by concatenating values.
- * @param {...(!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>)} var_args Values to concatenate.
- * @return {!goog.html.SafeHtml}
- */
-goog.html.SafeHtml.concat = function(var_args) {
-  var dir = goog.i18n.bidi.Dir.NEUTRAL;
-  var content = '';
-
-  /**
-   * @param {!goog.html.SafeHtml.TextOrHtml_|
-   *     !Array<!goog.html.SafeHtml.TextOrHtml_>} argument
-   */
-  var addArgument = function(argument) {
-    if (goog.isArray(argument)) {
-      goog.array.forEach(argument, addArgument);
-    } else {
-      var html = goog.html.SafeHtml.htmlEscape(argument);
-      content += goog.html.SafeHtml.unwrap(html);
-      var htmlDir = html.getDirection();
-      if (dir == goog.i18n.bidi.Dir.NEUTRAL) {
-        dir = htmlDir;
-      } else if (htmlDir != goog.i18n.bidi.Dir.NEUTRAL && dir != htmlDir) {
-        dir = null;
-      }
-    }
-  };
-
-  goog.array.forEach(arguments, addArgument);
-  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-      content, dir);
-};
-
-
-/**
- * Creates a new SafeHtml object with known directionality by concatenating the
- * values.
- * @param {!goog.i18n.bidi.Dir} dir Directionality.
- * @param {...(!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>)} var_args Elements of array
- *     arguments would be processed recursively.
- * @return {!goog.html.SafeHtml}
- */
-goog.html.SafeHtml.concatWithDir = function(dir, var_args) {
-  var html = goog.html.SafeHtml.concat(goog.array.slice(arguments, 1));
-  html.dir_ = dir;
-  return html;
-};
-
-
-/**
- * Type marker for the SafeHtml type, used to implement additional run-time
- * type checking.
- * @const {!Object}
- * @private
- */
-goog.html.SafeHtml.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Package-internal utility method to create SafeHtml instances.
- *
- * @param {string} html The string to initialize the SafeHtml object with.
- * @param {?goog.i18n.bidi.Dir} dir The directionality of the SafeHtml to be
- *     constructed, or null if unknown.
- * @return {!goog.html.SafeHtml} The initialized SafeHtml object.
- * @package
- */
-goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse = function(
-    html, dir) {
-  return new goog.html.SafeHtml().initSecurityPrivateDoNotAccessOrElse_(
-      html, dir);
-};
-
-
-/**
- * Called from createSafeHtmlSecurityPrivateDoNotAccessOrElse(). This
- * method exists only so that the compiler can dead code eliminate static
- * fields (like EMPTY) when they're not accessed.
- * @param {string} html
- * @param {?goog.i18n.bidi.Dir} dir
- * @return {!goog.html.SafeHtml}
- * @private
- */
-goog.html.SafeHtml.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
-    html, dir) {
-  this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = html;
-  this.dir_ = dir;
-  return this;
-};
-
-
-/**
- * Like create() but does not restrict which tags can be constructed.
- *
- * @param {string} tagName Tag name. Set or validated by caller.
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- * @param {(!goog.html.SafeHtml.TextOrHtml_|
- *     !Array<!goog.html.SafeHtml.TextOrHtml_>)=} opt_content
- * @return {!goog.html.SafeHtml}
- * @throws {Error} If invalid or unsafe attribute name or value is provided.
- * @throws {goog.asserts.AssertionError} If content for void tag is provided.
- * @package
- */
-goog.html.SafeHtml.createSafeHtmlTagSecurityPrivateDoNotAccessOrElse = function(
-    tagName, opt_attributes, opt_content) {
-  var dir = null;
-  var result = '<' + tagName;
-  result += goog.html.SafeHtml.stringifyAttributes(tagName, opt_attributes);
-
-  var content = opt_content;
-  if (!goog.isDefAndNotNull(content)) {
-    content = [];
-  } else if (!goog.isArray(content)) {
-    content = [content];
-  }
-
-  if (goog.dom.tags.isVoidTag(tagName.toLowerCase())) {
-    goog.asserts.assert(
-        !content.length, 'Void tag <' + tagName + '> does not allow content.');
-    result += '>';
-  } else {
-    var html = goog.html.SafeHtml.concat(content);
-    result += '>' + goog.html.SafeHtml.unwrap(html) + '</' + tagName + '>';
-    dir = html.getDirection();
-  }
-
-  var dirAttribute = opt_attributes && opt_attributes['dir'];
-  if (dirAttribute) {
-    if (/^(ltr|rtl|auto)$/i.test(dirAttribute)) {
-      // If the tag has the "dir" attribute specified then its direction is
-      // neutral because it can be safely used in any context.
-      dir = goog.i18n.bidi.Dir.NEUTRAL;
-    } else {
-      dir = null;
-    }
-  }
-
-  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-      result, dir);
-};
-
-
-/**
- * Creates a string with attributes to insert after tagName.
- * @param {string} tagName
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- * @return {string} Returns an empty string if there are no attributes, returns
- *     a string starting with a space otherwise.
- * @throws {Error} If attribute value is unsafe for the given tag and attribute.
- * @package
- */
-goog.html.SafeHtml.stringifyAttributes = function(tagName, opt_attributes) {
-  var result = '';
-  if (opt_attributes) {
-    for (var name in opt_attributes) {
-      if (!goog.html.SafeHtml.VALID_NAMES_IN_TAG_.test(name)) {
-        throw Error('Invalid attribute name "' + name + '".');
-      }
-      var value = opt_attributes[name];
-      if (!goog.isDefAndNotNull(value)) {
-        continue;
-      }
-      result +=
-          ' ' + goog.html.SafeHtml.getAttrNameAndValue_(tagName, name, value);
-    }
-  }
-  return result;
-};
-
-
-/**
- * @param {!Object<string, ?goog.html.SafeHtml.AttributeValue>} fixedAttributes
- * @param {!Object<string, string>} defaultAttributes
- * @param {?Object<string, ?goog.html.SafeHtml.AttributeValue>=} opt_attributes
- *     Optional attributes passed to create*().
- * @return {!Object<string, ?goog.html.SafeHtml.AttributeValue>}
- * @throws {Error} If opt_attributes contains an attribute with the same name
- *     as an attribute in fixedAttributes.
- * @package
- */
-goog.html.SafeHtml.combineAttributes = function(
-    fixedAttributes, defaultAttributes, opt_attributes) {
-  var combinedAttributes = {};
-  var name;
-
-  for (name in fixedAttributes) {
-    goog.asserts.assert(name.toLowerCase() == name, 'Must be lower case');
-    combinedAttributes[name] = fixedAttributes[name];
-  }
-  for (name in defaultAttributes) {
-    goog.asserts.assert(name.toLowerCase() == name, 'Must be lower case');
-    combinedAttributes[name] = defaultAttributes[name];
-  }
-
-  for (name in opt_attributes) {
-    var nameLower = name.toLowerCase();
-    if (nameLower in fixedAttributes) {
-      throw Error(
-          'Cannot override "' + nameLower + '" attribute, got "' + name +
-          '" with value "' + opt_attributes[name] + '"');
-    }
-    if (nameLower in defaultAttributes) {
-      delete combinedAttributes[nameLower];
-    }
-    combinedAttributes[name] = opt_attributes[name];
-  }
-
-  return combinedAttributes;
-};
-
-
-/**
- * A SafeHtml instance corresponding to the HTML doctype: "<!DOCTYPE html>".
- * @const {!goog.html.SafeHtml}
- */
-goog.html.SafeHtml.DOCTYPE_HTML =
-    goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-        '<!DOCTYPE html>', goog.i18n.bidi.Dir.NEUTRAL);
-
-
-/**
- * A SafeHtml instance corresponding to the empty string.
- * @const {!goog.html.SafeHtml}
- */
-goog.html.SafeHtml.EMPTY =
-    goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-        '', goog.i18n.bidi.Dir.NEUTRAL);
-
-
-/**
- * A SafeHtml instance corresponding to the <br> tag.
- * @const {!goog.html.SafeHtml}
- */
-goog.html.SafeHtml.BR =
-    goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-        '<br>', goog.i18n.bidi.Dir.NEUTRAL);
diff --git a/src/http/static/viz/2/goog/html/safescript.js b/src/http/static/viz/2/goog/html/safescript.js
deleted file mode 100644
index 7a945eb..0000000
--- a/src/http/static/viz/2/goog/html/safescript.js
+++ /dev/null
@@ -1,234 +0,0 @@
-// Copyright 2014 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview The SafeScript type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.SafeScript');
-
-goog.require('goog.asserts');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A string-like object which represents JavaScript code and that carries the
- * security type contract that its value, as a string, will not cause execution
- * of unconstrained attacker controlled code (XSS) when evaluated as JavaScript
- * in a browser.
- *
- * Instances of this type must be created via the factory method
- * {@code goog.html.SafeScript.fromConstant} and not by invoking its
- * constructor. The constructor intentionally takes no parameters and the type
- * is immutable; hence only a default instance corresponding to the empty string
- * can be obtained via constructor invocation.
- *
- * A SafeScript's string representation can safely be interpolated as the
- * content of a script element within HTML. The SafeScript string should not be
- * escaped before interpolation.
- *
- * Note that the SafeScript might contain text that is attacker-controlled but
- * that text should have been interpolated with appropriate escaping,
- * sanitization and/or validation into the right location in the script, such
- * that it is highly constrained in its effect (for example, it had to match a
- * set of whitelisted words).
- *
- * A SafeScript can be constructed via security-reviewed unchecked
- * conversions. In this case producers of SafeScript must ensure themselves that
- * the SafeScript does not contain unsafe script. Note in particular that
- * {@code &lt;} is dangerous, even when inside JavaScript strings, and so should
- * always be forbidden or JavaScript escaped in user controlled input. For
- * example, if {@code &lt;/script&gt;&lt;script&gt;evil&lt;/script&gt;"} were
- * interpolated inside a JavaScript string, it would break out of the context
- * of the original script element and {@code evil} would execute. Also note
- * that within an HTML script (raw text) element, HTML character references,
- * such as "&lt;" are not allowed. See
- * http://www.w3.org/TR/html5/scripting-1.html#restrictions-for-contents-of-script-elements.
- *
- * @see goog.html.SafeScript#fromConstant
- * @constructor
- * @final
- * @struct
- * @implements {goog.string.TypedString}
- */
-goog.html.SafeScript = function() {
-  /**
-   * The contained value of this SafeScript.  The field has a purposely
-   * ugly name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseSafeScriptWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.SafeScript#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.SAFE_SCRIPT_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.SafeScript.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeScript.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Type marker for the SafeScript type, used to implement additional
- * run-time type checking.
- * @const {!Object}
- * @private
- */
-goog.html.SafeScript.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Creates a SafeScript object from a compile-time constant string.
- *
- * @param {!goog.string.Const} script A compile-time-constant string from which
- *     to create a SafeScript.
- * @return {!goog.html.SafeScript} A SafeScript object initialized to
- *     {@code script}.
- */
-goog.html.SafeScript.fromConstant = function(script) {
-  var scriptString = goog.string.Const.unwrap(script);
-  if (scriptString.length === 0) {
-    return goog.html.SafeScript.EMPTY;
-  }
-  return goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse(
-      scriptString);
-};
-
-
-/**
- * Returns this SafeScript's value as a string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code SafeScript}, use {@code goog.html.SafeScript.unwrap} instead of
- * this method. If in doubt, assume that it's security relevant. In particular,
- * note that goog.html functions which return a goog.html type do not guarantee
- * the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
- * // instanceof goog.html.SafeHtml.
- * </pre>
- *
- * @see goog.html.SafeScript#unwrap
- * @override
- */
-goog.html.SafeScript.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseSafeScriptWrappedValue_;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a SafeScript, use
-   * {@code goog.html.SafeScript.unwrap}.
-   *
-   * @see goog.html.SafeScript#unwrap
-   * @override
-   */
-  goog.html.SafeScript.prototype.toString = function() {
-    return 'SafeScript{' +
-        this.privateDoNotAccessOrElseSafeScriptWrappedValue_ + '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a
- * SafeScript object, and returns its value.
- *
- * @param {!goog.html.SafeScript} safeScript The object to extract from.
- * @return {string} The safeScript object's contained string, unless
- *     the run-time type check fails. In that case, {@code unwrap} returns an
- *     innocuous string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.SafeScript.unwrap = function(safeScript) {
-  // Perform additional Run-time type-checking to ensure that
-  // safeScript is indeed an instance of the expected type.  This
-  // provides some additional protection against security bugs due to
-  // application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (safeScript instanceof goog.html.SafeScript &&
-      safeScript.constructor === goog.html.SafeScript &&
-      safeScript.SAFE_SCRIPT_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.SafeScript.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return safeScript.privateDoNotAccessOrElseSafeScriptWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type SafeScript, got \'' +
-        safeScript + '\' of type ' + goog.typeOf(safeScript));
-    return 'type_error:SafeScript';
-  }
-};
-
-
-/**
- * Package-internal utility method to create SafeScript instances.
- *
- * @param {string} script The string to initialize the SafeScript object with.
- * @return {!goog.html.SafeScript} The initialized SafeScript object.
- * @package
- */
-goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse =
-    function(script) {
-  return new goog.html.SafeScript().initSecurityPrivateDoNotAccessOrElse_(
-      script);
-};
-
-
-/**
- * Called from createSafeScriptSecurityPrivateDoNotAccessOrElse(). This
- * method exists only so that the compiler can dead code eliminate static
- * fields (like EMPTY) when they're not accessed.
- * @param {string} script
- * @return {!goog.html.SafeScript}
- * @private
- */
-goog.html.SafeScript.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
-    script) {
-  this.privateDoNotAccessOrElseSafeScriptWrappedValue_ = script;
-  return this;
-};
-
-
-/**
- * A SafeScript instance corresponding to the empty string.
- * @const {!goog.html.SafeScript}
- */
-goog.html.SafeScript.EMPTY =
-    goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse('');
diff --git a/src/http/static/viz/2/goog/html/safestyle.js b/src/http/static/viz/2/goog/html/safestyle.js
deleted file mode 100644
index 506a475..0000000
--- a/src/http/static/viz/2/goog/html/safestyle.js
+++ /dev/null
@@ -1,560 +0,0 @@
-// Copyright 2014 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview The SafeStyle type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.SafeStyle');
-
-goog.require('goog.array');
-goog.require('goog.asserts');
-goog.require('goog.html.SafeUrl');
-goog.require('goog.string');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A string-like object which represents a sequence of CSS declarations
- * ({@code propertyName1: propertyvalue1; propertyName2: propertyValue2; ...})
- * and that carries the security type contract that its value, as a string,
- * will not cause untrusted script execution (XSS) when evaluated as CSS in a
- * browser.
- *
- * Instances of this type must be created via the factory methods
- * ({@code goog.html.SafeStyle.create} or
- * {@code goog.html.SafeStyle.fromConstant}) and not by invoking its
- * constructor. The constructor intentionally takes no parameters and the type
- * is immutable; hence only a default instance corresponding to the empty string
- * can be obtained via constructor invocation.
- *
- * SafeStyle's string representation can safely be:
- * <ul>
- *   <li>Interpolated as the content of a *quoted* HTML style attribute.
- *       However, the SafeStyle string *must be HTML-attribute-escaped* before
- *       interpolation.
- *   <li>Interpolated as the content of a {}-wrapped block within a stylesheet.
- *       '<' characters in the SafeStyle string *must be CSS-escaped* before
- *       interpolation. The SafeStyle string is also guaranteed not to be able
- *       to introduce new properties or elide existing ones.
- *   <li>Interpolated as the content of a {}-wrapped block within an HTML
- *       <style> element. '<' characters in the SafeStyle string
- *       *must be CSS-escaped* before interpolation.
- *   <li>Assigned to the style property of a DOM node. The SafeStyle string
- *       should not be escaped before being assigned to the property.
- * </ul>
- *
- * A SafeStyle may never contain literal angle brackets. Otherwise, it could
- * be unsafe to place a SafeStyle into a &lt;style&gt; tag (where it can't
- * be HTML escaped). For example, if the SafeStyle containing
- * "{@code font: 'foo &lt;style/&gt;&lt;script&gt;evil&lt;/script&gt;'}" were
- * interpolated within a &lt;style&gt; tag, this would then break out of the
- * style context into HTML.
- *
- * A SafeStyle may contain literal single or double quotes, and as such the
- * entire style string must be escaped when used in a style attribute (if
- * this were not the case, the string could contain a matching quote that
- * would escape from the style attribute).
- *
- * Values of this type must be composable, i.e. for any two values
- * {@code style1} and {@code style2} of this type,
- * {@code goog.html.SafeStyle.unwrap(style1) +
- * goog.html.SafeStyle.unwrap(style2)} must itself be a value that satisfies
- * the SafeStyle type constraint. This requirement implies that for any value
- * {@code style} of this type, {@code goog.html.SafeStyle.unwrap(style)} must
- * not end in a "property value" or "property name" context. For example,
- * a value of {@code background:url("} or {@code font-} would not satisfy the
- * SafeStyle contract. This is because concatenating such strings with a
- * second value that itself does not contain unsafe CSS can result in an
- * overall string that does. For example, if {@code javascript:evil())"} is
- * appended to {@code background:url("}, the resulting string may result in
- * the execution of a malicious script.
- *
- * TODO(mlourenco): Consider whether we should implement UTF-8 interchange
- * validity checks and blacklisting of newlines (including Unicode ones) and
- * other whitespace characters (\t, \f). Document here if so and also update
- * SafeStyle.fromConstant().
- *
- * The following example values comply with this type's contract:
- * <ul>
- *   <li><pre>width: 1em;</pre>
- *   <li><pre>height:1em;</pre>
- *   <li><pre>width: 1em;height: 1em;</pre>
- *   <li><pre>background:url('http://url');</pre>
- * </ul>
- * In addition, the empty string is safe for use in a CSS attribute.
- *
- * The following example values do NOT comply with this type's contract:
- * <ul>
- *   <li><pre>background: red</pre> (missing a trailing semi-colon)
- *   <li><pre>background:</pre> (missing a value and a trailing semi-colon)
- *   <li><pre>1em</pre> (missing an attribute name, which provides context for
- *       the value)
- * </ul>
- *
- * @see goog.html.SafeStyle#create
- * @see goog.html.SafeStyle#fromConstant
- * @see http://www.w3.org/TR/css3-syntax/
- * @constructor
- * @final
- * @struct
- * @implements {goog.string.TypedString}
- */
-goog.html.SafeStyle = function() {
-  /**
-   * The contained value of this SafeStyle.  The field has a purposely
-   * ugly name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseSafeStyleWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.SafeStyle#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeStyle.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Type marker for the SafeStyle type, used to implement additional
- * run-time type checking.
- * @const {!Object}
- * @private
- */
-goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Creates a SafeStyle object from a compile-time constant string.
- *
- * {@code style} should be in the format
- * {@code name: value; [name: value; ...]} and must not have any < or >
- * characters in it. This is so that SafeStyle's contract is preserved,
- * allowing the SafeStyle to correctly be interpreted as a sequence of CSS
- * declarations and without affecting the syntactic structure of any
- * surrounding CSS and HTML.
- *
- * This method performs basic sanity checks on the format of {@code style}
- * but does not constrain the format of {@code name} and {@code value}, except
- * for disallowing tag characters.
- *
- * @param {!goog.string.Const} style A compile-time-constant string from which
- *     to create a SafeStyle.
- * @return {!goog.html.SafeStyle} A SafeStyle object initialized to
- *     {@code style}.
- */
-goog.html.SafeStyle.fromConstant = function(style) {
-  var styleString = goog.string.Const.unwrap(style);
-  if (styleString.length === 0) {
-    return goog.html.SafeStyle.EMPTY;
-  }
-  goog.html.SafeStyle.checkStyle_(styleString);
-  goog.asserts.assert(
-      goog.string.endsWith(styleString, ';'),
-      'Last character of style string is not \';\': ' + styleString);
-  goog.asserts.assert(
-      goog.string.contains(styleString, ':'),
-      'Style string must contain at least one \':\', to ' +
-          'specify a "name: value" pair: ' + styleString);
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      styleString);
-};
-
-
-/**
- * Checks if the style definition is valid.
- * @param {string} style
- * @private
- */
-goog.html.SafeStyle.checkStyle_ = function(style) {
-  goog.asserts.assert(
-      !/[<>]/.test(style), 'Forbidden characters in style string: ' + style);
-};
-
-
-/**
- * Returns this SafeStyle's value as a string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code SafeStyle}, use {@code goog.html.SafeStyle.unwrap} instead of
- * this method. If in doubt, assume that it's security relevant. In particular,
- * note that goog.html functions which return a goog.html type do not guarantee
- * the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
- * // instanceof goog.html.SafeHtml.
- * </pre>
- *
- * @see goog.html.SafeStyle#unwrap
- * @override
- */
-goog.html.SafeStyle.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseSafeStyleWrappedValue_;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a SafeStyle, use
-   * {@code goog.html.SafeStyle.unwrap}.
-   *
-   * @see goog.html.SafeStyle#unwrap
-   * @override
-   */
-  goog.html.SafeStyle.prototype.toString = function() {
-    return 'SafeStyle{' + this.privateDoNotAccessOrElseSafeStyleWrappedValue_ +
-        '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a
- * SafeStyle object, and returns its value.
- *
- * @param {!goog.html.SafeStyle} safeStyle The object to extract from.
- * @return {string} The safeStyle object's contained string, unless
- *     the run-time type check fails. In that case, {@code unwrap} returns an
- *     innocuous string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.SafeStyle.unwrap = function(safeStyle) {
-  // Perform additional Run-time type-checking to ensure that
-  // safeStyle is indeed an instance of the expected type.  This
-  // provides some additional protection against security bugs due to
-  // application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (safeStyle instanceof goog.html.SafeStyle &&
-      safeStyle.constructor === goog.html.SafeStyle &&
-      safeStyle.SAFE_STYLE_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.SafeStyle.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return safeStyle.privateDoNotAccessOrElseSafeStyleWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type SafeStyle, got \'' +
-        safeStyle + '\' of type ' + goog.typeOf(safeStyle));
-    return 'type_error:SafeStyle';
-  }
-};
-
-
-/**
- * Package-internal utility method to create SafeStyle instances.
- *
- * @param {string} style The string to initialize the SafeStyle object with.
- * @return {!goog.html.SafeStyle} The initialized SafeStyle object.
- * @package
- */
-goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse = function(
-    style) {
-  return new goog.html.SafeStyle().initSecurityPrivateDoNotAccessOrElse_(style);
-};
-
-
-/**
- * Called from createSafeStyleSecurityPrivateDoNotAccessOrElse(). This
- * method exists only so that the compiler can dead code eliminate static
- * fields (like EMPTY) when they're not accessed.
- * @param {string} style
- * @return {!goog.html.SafeStyle}
- * @private
- */
-goog.html.SafeStyle.prototype.initSecurityPrivateDoNotAccessOrElse_ = function(
-    style) {
-  this.privateDoNotAccessOrElseSafeStyleWrappedValue_ = style;
-  return this;
-};
-
-
-/**
- * A SafeStyle instance corresponding to the empty string.
- * @const {!goog.html.SafeStyle}
- */
-goog.html.SafeStyle.EMPTY =
-    goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse('');
-
-
-/**
- * The innocuous string generated by goog.html.SafeStyle.create when passed
- * an unsafe value.
- * @const {string}
- */
-goog.html.SafeStyle.INNOCUOUS_STRING = 'zClosurez';
-
-
-/**
- * A single property value.
- * @typedef {string|!goog.string.Const|!goog.html.SafeUrl}
- */
-goog.html.SafeStyle.PropertyValue;
-
-
-/**
- * Mapping of property names to their values.
- * We don't support numbers even though some values might be numbers (e.g.
- * line-height or 0 for any length). The reason is that most numeric values need
- * units (e.g. '1px') and allowing numbers could cause users forgetting about
- * them.
- * @typedef {!Object<string, ?goog.html.SafeStyle.PropertyValue|
- *     ?Array<!goog.html.SafeStyle.PropertyValue>>}
- */
-goog.html.SafeStyle.PropertyMap;
-
-
-/**
- * Creates a new SafeStyle object from the properties specified in the map.
- * @param {goog.html.SafeStyle.PropertyMap} map Mapping of property names to
- *     their values, for example {'margin': '1px'}. Names must consist of
- *     [-_a-zA-Z0-9]. Values might be strings consisting of
- *     [-,.'"%_!# a-zA-Z0-9], where " and ' must be properly balanced. We also
- *     allow simple functions like rgb() and url() which sanitizes its contents.
- *     Other values must be wrapped in goog.string.Const. URLs might be passed
- *     as goog.html.SafeUrl which will be wrapped into url(""). We also support
- *     array whose elements are joined with ' '. Null value causes skipping the
- *     property.
- * @return {!goog.html.SafeStyle}
- * @throws {Error} If invalid name is provided.
- * @throws {goog.asserts.AssertionError} If invalid value is provided. With
- *     disabled assertions, invalid value is replaced by
- *     goog.html.SafeStyle.INNOCUOUS_STRING.
- */
-goog.html.SafeStyle.create = function(map) {
-  var style = '';
-  for (var name in map) {
-    if (!/^[-_a-zA-Z0-9]+$/.test(name)) {
-      throw Error('Name allows only [-_a-zA-Z0-9], got: ' + name);
-    }
-    var value = map[name];
-    if (value == null) {
-      continue;
-    }
-    if (goog.isArray(value)) {
-      value = goog.array.map(value, goog.html.SafeStyle.sanitizePropertyValue_)
-                  .join(' ');
-    } else {
-      value = goog.html.SafeStyle.sanitizePropertyValue_(value);
-    }
-    style += name + ':' + value + ';';
-  }
-  if (!style) {
-    return goog.html.SafeStyle.EMPTY;
-  }
-  goog.html.SafeStyle.checkStyle_(style);
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      style);
-};
-
-
-/**
- * Checks and converts value to string.
- * @param {!goog.html.SafeStyle.PropertyValue} value
- * @return {string}
- * @private
- */
-goog.html.SafeStyle.sanitizePropertyValue_ = function(value) {
-  if (value instanceof goog.html.SafeUrl) {
-    var url = goog.html.SafeUrl.unwrap(value);
-    return 'url("' + url.replace(/</g, '%3c').replace(/[\\"]/g, '\\$&') + '")';
-  }
-  var result = value instanceof goog.string.Const ?
-      goog.string.Const.unwrap(value) :
-      goog.html.SafeStyle.sanitizePropertyValueString_(String(value));
-  // These characters can be used to change context and we don't want that even
-  // with const values.
-  goog.asserts.assert(!/[{;}]/.test(result), 'Value does not allow [{;}].');
-  return result;
-};
-
-
-/**
- * Checks string value.
- * @param {string} value
- * @return {string}
- * @private
- */
-goog.html.SafeStyle.sanitizePropertyValueString_ = function(value) {
-  var valueWithoutFunctions =
-      value.replace(goog.html.SafeUrl.FUNCTIONS_RE_, '$1')
-          .replace(goog.html.SafeUrl.URL_RE_, 'url');
-  if (!goog.html.SafeStyle.VALUE_RE_.test(valueWithoutFunctions)) {
-    goog.asserts.fail(
-        'String value allows only ' + goog.html.SafeStyle.VALUE_ALLOWED_CHARS_ +
-        ' and simple functions, got: ' + value);
-    return goog.html.SafeStyle.INNOCUOUS_STRING;
-  } else if (!goog.html.SafeStyle.hasBalancedQuotes_(value)) {
-    goog.asserts.fail('String value requires balanced quotes, got: ' + value);
-    return goog.html.SafeStyle.INNOCUOUS_STRING;
-  }
-  return goog.html.SafeStyle.sanitizeUrl_(value);
-};
-
-
-/**
- * Checks that quotes (" and ') are properly balanced inside a string. Assumes
- * that neither escape (\) nor any other character that could result in
- * breaking out of a string parsing context are allowed;
- * see http://www.w3.org/TR/css3-syntax/#string-token-diagram.
- * @param {string} value Untrusted CSS property value.
- * @return {boolean} True if property value is safe with respect to quote
- *     balancedness.
- * @private
- */
-goog.html.SafeStyle.hasBalancedQuotes_ = function(value) {
-  var outsideSingle = true;
-  var outsideDouble = true;
-  for (var i = 0; i < value.length; i++) {
-    var c = value.charAt(i);
-    if (c == "'" && outsideDouble) {
-      outsideSingle = !outsideSingle;
-    } else if (c == '"' && outsideSingle) {
-      outsideDouble = !outsideDouble;
-    }
-  }
-  return outsideSingle && outsideDouble;
-};
-
-
-/**
- * Characters allowed in goog.html.SafeStyle.VALUE_RE_.
- * @private {string}
- */
-goog.html.SafeStyle.VALUE_ALLOWED_CHARS_ = '[-,."\'%_!# a-zA-Z0-9]';
-
-
-/**
- * Regular expression for safe values.
- *
- * Quotes (" and ') are allowed, but a check must be done elsewhere to ensure
- * they're balanced.
- *
- * ',' allows multiple values to be assigned to the same property
- * (e.g. background-attachment or font-family) and hence could allow
- * multiple values to get injected, but that should pose no risk of XSS.
- *
- * The expression checks only for XSS safety, not for CSS validity.
- * @const {!RegExp}
- * @private
- */
-goog.html.SafeStyle.VALUE_RE_ =
-    new RegExp('^' + goog.html.SafeStyle.VALUE_ALLOWED_CHARS_ + '+$');
-
-
-/**
- * Regular expression for url(). We support URLs allowed by
- * https://www.w3.org/TR/css-syntax-3/#url-token-diagram without using escape
- * sequences. Use percent-encoding if you need to use special characters like
- * backslash.
- * @private @const {!RegExp}
- */
-goog.html.SafeUrl.URL_RE_ = new RegExp(
-    '\\b(url\\([ \t\n]*)(' +
-        '\'[ -&(-\\[\\]-~]*\'' +  // Printable characters except ' and \.
-        '|"[ !#-\\[\\]-~]*"' +    // Printable characters except " and \.
-        '|[!#-&*-\\[\\]-~]*' +    // Printable characters except [ "'()\\].
-        ')([ \t\n]*\\))',
-    'g');
-
-
-/**
- * Regular expression for simple functions.
- * @private @const {!RegExp}
- */
-goog.html.SafeUrl.FUNCTIONS_RE_ = new RegExp(
-    '\\b(hsl|hsla|rgb|rgba|(rotate|scale|translate)(X|Y|Z|3d)?)' +
-        '\\([-0-9a-z.%, ]+\\)',
-    'g');
-
-
-/**
- * Sanitize URLs inside url().
- *
- * NOTE: We could also consider using CSS.escape once that's available in the
- * browsers. However, loosely matching URL e.g. with url\(.*\) and then escaping
- * the contents would result in a slightly different language than CSS leading
- * to confusion of users. E.g. url(")") is valid in CSS but it would be invalid
- * as seen by our parser. On the other hand, url(\) is invalid in CSS but our
- * parser would be fine with it.
- *
- * @param {string} value Untrusted CSS property value.
- * @return {string}
- * @private
- */
-goog.html.SafeStyle.sanitizeUrl_ = function(value) {
-  return value.replace(
-      goog.html.SafeUrl.URL_RE_, function(match, before, url, after) {
-        var quote = '';
-        url = url.replace(/^(['"])(.*)\1$/, function(match, start, inside) {
-          quote = start;
-          return inside;
-        });
-        var sanitized = goog.html.SafeUrl.sanitize(url).getTypedStringValue();
-        return before + quote + sanitized + quote + after;
-      });
-};
-
-
-/**
- * Creates a new SafeStyle object by concatenating the values.
- * @param {...(!goog.html.SafeStyle|!Array<!goog.html.SafeStyle>)} var_args
- *     SafeStyles to concatenate.
- * @return {!goog.html.SafeStyle}
- */
-goog.html.SafeStyle.concat = function(var_args) {
-  var style = '';
-
-  /**
-   * @param {!goog.html.SafeStyle|!Array<!goog.html.SafeStyle>} argument
-   */
-  var addArgument = function(argument) {
-    if (goog.isArray(argument)) {
-      goog.array.forEach(argument, addArgument);
-    } else {
-      style += goog.html.SafeStyle.unwrap(argument);
-    }
-  };
-
-  goog.array.forEach(arguments, addArgument);
-  if (!style) {
-    return goog.html.SafeStyle.EMPTY;
-  }
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      style);
-};
diff --git a/src/http/static/viz/2/goog/html/safestylesheet.js b/src/http/static/viz/2/goog/html/safestylesheet.js
deleted file mode 100644
index cdd9e31..0000000
--- a/src/http/static/viz/2/goog/html/safestylesheet.js
+++ /dev/null
@@ -1,344 +0,0 @@
-// Copyright 2014 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview The SafeStyleSheet type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.SafeStyleSheet');
-
-goog.require('goog.array');
-goog.require('goog.asserts');
-goog.require('goog.html.SafeStyle');
-goog.require('goog.object');
-goog.require('goog.string');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A string-like object which represents a CSS style sheet and that carries the
- * security type contract that its value, as a string, will not cause untrusted
- * script execution (XSS) when evaluated as CSS in a browser.
- *
- * Instances of this type must be created via the factory method
- * {@code goog.html.SafeStyleSheet.fromConstant} and not by invoking its
- * constructor. The constructor intentionally takes no parameters and the type
- * is immutable; hence only a default instance corresponding to the empty string
- * can be obtained via constructor invocation.
- *
- * A SafeStyleSheet's string representation can safely be interpolated as the
- * content of a style element within HTML. The SafeStyleSheet string should
- * not be escaped before interpolation.
- *
- * Values of this type must be composable, i.e. for any two values
- * {@code styleSheet1} and {@code styleSheet2} of this type,
- * {@code goog.html.SafeStyleSheet.unwrap(styleSheet1) +
- * goog.html.SafeStyleSheet.unwrap(styleSheet2)} must itself be a value that
- * satisfies the SafeStyleSheet type constraint. This requirement implies that
- * for any value {@code styleSheet} of this type,
- * {@code goog.html.SafeStyleSheet.unwrap(styleSheet1)} must end in
- * "beginning of rule" context.
-
- * A SafeStyleSheet can be constructed via security-reviewed unchecked
- * conversions. In this case producers of SafeStyleSheet must ensure themselves
- * that the SafeStyleSheet does not contain unsafe script. Note in particular
- * that {@code &lt;} is dangerous, even when inside CSS strings, and so should
- * always be forbidden or CSS-escaped in user controlled input. For example, if
- * {@code &lt;/style&gt;&lt;script&gt;evil&lt;/script&gt;"} were interpolated
- * inside a CSS string, it would break out of the context of the original
- * style element and {@code evil} would execute. Also note that within an HTML
- * style (raw text) element, HTML character references, such as
- * {@code &amp;lt;}, are not allowed. See
- *
- http://www.w3.org/TR/html5/scripting-1.html#restrictions-for-contents-of-script-elements
- * (similar considerations apply to the style element).
- *
- * @see goog.html.SafeStyleSheet#fromConstant
- * @constructor
- * @final
- * @struct
- * @implements {goog.string.TypedString}
- */
-goog.html.SafeStyleSheet = function() {
-  /**
-   * The contained value of this SafeStyleSheet.  The field has a purposely
-   * ugly name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.SafeStyleSheet#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.SAFE_STYLE_SHEET_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeStyleSheet.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Type marker for the SafeStyleSheet type, used to implement additional
- * run-time type checking.
- * @const {!Object}
- * @private
- */
-goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Creates a style sheet consisting of one selector and one style definition.
- * Use {@link goog.html.SafeStyleSheet.concat} to create longer style sheets.
- * This function doesn't support @import, @media and similar constructs.
- * @param {string} selector CSS selector, e.g. '#id' or 'tag .class, #id'. We
- *     support CSS3 selectors: https://w3.org/TR/css3-selectors/#selectors.
- * @param {!goog.html.SafeStyle.PropertyMap|!goog.html.SafeStyle} style Style
- *     definition associated with the selector.
- * @return {!goog.html.SafeStyleSheet}
- * @throws {Error} If invalid selector is provided.
- */
-goog.html.SafeStyleSheet.createRule = function(selector, style) {
-  if (goog.string.contains(selector, '<')) {
-    throw Error('Selector does not allow \'<\', got: ' + selector);
-  }
-
-  // Remove strings.
-  var selectorToCheck =
-      selector.replace(/('|")((?!\1)[^\r\n\f\\]|\\[\s\S])*\1/g, '');
-
-  // Check characters allowed in CSS3 selectors.
-  if (!/^[-_a-zA-Z0-9#.:* ,>+~[\]()=^$|]+$/.test(selectorToCheck)) {
-    throw Error(
-        'Selector allows only [-_a-zA-Z0-9#.:* ,>+~[\\]()=^$|] and ' +
-        'strings, got: ' + selector);
-  }
-
-  // Check balanced () and [].
-  if (!goog.html.SafeStyleSheet.hasBalancedBrackets_(selectorToCheck)) {
-    throw Error('() and [] in selector must be balanced, got: ' + selector);
-  }
-
-  if (!(style instanceof goog.html.SafeStyle)) {
-    style = goog.html.SafeStyle.create(style);
-  }
-  var styleSheet = selector + '{' + goog.html.SafeStyle.unwrap(style) + '}';
-  return goog.html.SafeStyleSheet
-      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(styleSheet);
-};
-
-
-/**
- * Checks if a string has balanced () and [] brackets.
- * @param {string} s String to check.
- * @return {boolean}
- * @private
- */
-goog.html.SafeStyleSheet.hasBalancedBrackets_ = function(s) {
-  var brackets = {'(': ')', '[': ']'};
-  var expectedBrackets = [];
-  for (var i = 0; i < s.length; i++) {
-    var ch = s[i];
-    if (brackets[ch]) {
-      expectedBrackets.push(brackets[ch]);
-    } else if (goog.object.contains(brackets, ch)) {
-      if (expectedBrackets.pop() != ch) {
-        return false;
-      }
-    }
-  }
-  return expectedBrackets.length == 0;
-};
-
-
-/**
- * Creates a new SafeStyleSheet object by concatenating values.
- * @param {...(!goog.html.SafeStyleSheet|!Array<!goog.html.SafeStyleSheet>)}
- *     var_args Values to concatenate.
- * @return {!goog.html.SafeStyleSheet}
- */
-goog.html.SafeStyleSheet.concat = function(var_args) {
-  var result = '';
-
-  /**
-   * @param {!goog.html.SafeStyleSheet|!Array<!goog.html.SafeStyleSheet>}
-   *     argument
-   */
-  var addArgument = function(argument) {
-    if (goog.isArray(argument)) {
-      goog.array.forEach(argument, addArgument);
-    } else {
-      result += goog.html.SafeStyleSheet.unwrap(argument);
-    }
-  };
-
-  goog.array.forEach(arguments, addArgument);
-  return goog.html.SafeStyleSheet
-      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(result);
-};
-
-
-/**
- * Creates a SafeStyleSheet object from a compile-time constant string.
- *
- * {@code styleSheet} must not have any &lt; characters in it, so that
- * the syntactic structure of the surrounding HTML is not affected.
- *
- * @param {!goog.string.Const} styleSheet A compile-time-constant string from
- *     which to create a SafeStyleSheet.
- * @return {!goog.html.SafeStyleSheet} A SafeStyleSheet object initialized to
- *     {@code styleSheet}.
- */
-goog.html.SafeStyleSheet.fromConstant = function(styleSheet) {
-  var styleSheetString = goog.string.Const.unwrap(styleSheet);
-  if (styleSheetString.length === 0) {
-    return goog.html.SafeStyleSheet.EMPTY;
-  }
-  // > is a valid character in CSS selectors and there's no strict need to
-  // block it if we already block <.
-  goog.asserts.assert(
-      !goog.string.contains(styleSheetString, '<'),
-      "Forbidden '<' character in style sheet string: " + styleSheetString);
-  return goog.html.SafeStyleSheet
-      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(styleSheetString);
-};
-
-
-/**
- * Returns this SafeStyleSheet's value as a string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code SafeStyleSheet}, use {@code goog.html.SafeStyleSheet.unwrap}
- * instead of this method. If in doubt, assume that it's security relevant. In
- * particular, note that goog.html functions which return a goog.html type do
- * not guarantee the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml
- * // instanceof goog.html.SafeHtml.
- * </pre>
- *
- * @see goog.html.SafeStyleSheet#unwrap
- * @override
- */
-goog.html.SafeStyleSheet.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a SafeStyleSheet, use
-   * {@code goog.html.SafeStyleSheet.unwrap}.
-   *
-   * @see goog.html.SafeStyleSheet#unwrap
-   * @override
-   */
-  goog.html.SafeStyleSheet.prototype.toString = function() {
-    return 'SafeStyleSheet{' +
-        this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_ + '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a
- * SafeStyleSheet object, and returns its value.
- *
- * @param {!goog.html.SafeStyleSheet} safeStyleSheet The object to extract from.
- * @return {string} The safeStyleSheet object's contained string, unless
- *     the run-time type check fails. In that case, {@code unwrap} returns an
- *     innocuous string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.SafeStyleSheet.unwrap = function(safeStyleSheet) {
-  // Perform additional Run-time type-checking to ensure that
-  // safeStyleSheet is indeed an instance of the expected type.  This
-  // provides some additional protection against security bugs due to
-  // application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (safeStyleSheet instanceof goog.html.SafeStyleSheet &&
-      safeStyleSheet.constructor === goog.html.SafeStyleSheet &&
-      safeStyleSheet
-              .SAFE_STYLE_SHEET_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.SafeStyleSheet.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return safeStyleSheet.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type SafeStyleSheet, got \'' +
-        safeStyleSheet + '\' of type ' + goog.typeOf(safeStyleSheet));
-    return 'type_error:SafeStyleSheet';
-  }
-};
-
-
-/**
- * Package-internal utility method to create SafeStyleSheet instances.
- *
- * @param {string} styleSheet The string to initialize the SafeStyleSheet
- *     object with.
- * @return {!goog.html.SafeStyleSheet} The initialized SafeStyleSheet object.
- * @package
- */
-goog.html.SafeStyleSheet.createSafeStyleSheetSecurityPrivateDoNotAccessOrElse =
-    function(styleSheet) {
-  return new goog.html.SafeStyleSheet().initSecurityPrivateDoNotAccessOrElse_(
-      styleSheet);
-};
-
-
-/**
- * Called from createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(). This
- * method exists only so that the compiler can dead code eliminate static
- * fields (like EMPTY) when they're not accessed.
- * @param {string} styleSheet
- * @return {!goog.html.SafeStyleSheet}
- * @private
- */
-goog.html.SafeStyleSheet.prototype.initSecurityPrivateDoNotAccessOrElse_ =
-    function(styleSheet) {
-  this.privateDoNotAccessOrElseSafeStyleSheetWrappedValue_ = styleSheet;
-  return this;
-};
-
-
-/**
- * A SafeStyleSheet instance corresponding to the empty string.
- * @const {!goog.html.SafeStyleSheet}
- */
-goog.html.SafeStyleSheet.EMPTY =
-    goog.html.SafeStyleSheet
-        .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse('');
diff --git a/src/http/static/viz/2/goog/html/safeurl.js b/src/http/static/viz/2/goog/html/safeurl.js
deleted file mode 100644
index 3d1ee11..0000000
--- a/src/http/static/viz/2/goog/html/safeurl.js
+++ /dev/null
@@ -1,454 +0,0 @@
-// Copyright 2013 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview The SafeUrl type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.SafeUrl');
-
-goog.require('goog.asserts');
-goog.require('goog.fs.url');
-goog.require('goog.html.TrustedResourceUrl');
-goog.require('goog.i18n.bidi.Dir');
-goog.require('goog.i18n.bidi.DirectionalString');
-goog.require('goog.string');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A string that is safe to use in URL context in DOM APIs and HTML documents.
- *
- * A SafeUrl is a string-like object that carries the security type contract
- * that its value as a string will not cause untrusted script execution
- * when evaluated as a hyperlink URL in a browser.
- *
- * Values of this type are guaranteed to be safe to use in URL/hyperlink
- * contexts, such as assignment to URL-valued DOM properties, in the sense that
- * the use will not result in a Cross-Site-Scripting vulnerability. Similarly,
- * SafeUrls can be interpolated into the URL context of an HTML template (e.g.,
- * inside a href attribute). However, appropriate HTML-escaping must still be
- * applied.
- *
- * Note that, as documented in {@code goog.html.SafeUrl.unwrap}, this type's
- * contract does not guarantee that instances are safe to interpolate into HTML
- * without appropriate escaping.
- *
- * Note also that this type's contract does not imply any guarantees regarding
- * the resource the URL refers to.  In particular, SafeUrls are <b>not</b>
- * safe to use in a context where the referred-to resource is interpreted as
- * trusted code, e.g., as the src of a script tag.
- *
- * Instances of this type must be created via the factory methods
- * ({@code goog.html.SafeUrl.fromConstant}, {@code goog.html.SafeUrl.sanitize}),
- * etc and not by invoking its constructor.  The constructor intentionally
- * takes no parameters and the type is immutable; hence only a default instance
- * corresponding to the empty string can be obtained via constructor invocation.
- *
- * @see goog.html.SafeUrl#fromConstant
- * @see goog.html.SafeUrl#from
- * @see goog.html.SafeUrl#sanitize
- * @constructor
- * @final
- * @struct
- * @implements {goog.i18n.bidi.DirectionalString}
- * @implements {goog.string.TypedString}
- */
-goog.html.SafeUrl = function() {
-  /**
-   * The contained value of this SafeUrl.  The field has a purposely ugly
-   * name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.SafeUrl#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.SAFE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-};
-
-
-/**
- * The innocuous string generated by goog.html.SafeUrl.sanitize when passed
- * an unsafe URL.
- *
- * about:invalid is registered in
- * http://www.w3.org/TR/css3-values/#about-invalid.
- * http://tools.ietf.org/html/rfc6694#section-2.2.1 permits about URLs to
- * contain a fragment, which is not to be considered when determining if an
- * about URL is well-known.
- *
- * Using about:invalid seems preferable to using a fixed data URL, since
- * browsers might choose to not report CSP violations on it, as legitimate
- * CSS function calls to attr() can result in this URL being produced. It is
- * also a standard URL which matches exactly the semantics we need:
- * "The about:invalid URI references a non-existent document with a generic
- * error condition. It can be used when a URI is necessary, but the default
- * value shouldn't be resolveable as any type of document".
- *
- * @const {string}
- */
-goog.html.SafeUrl.INNOCUOUS_STRING = 'about:invalid#zClosurez';
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeUrl.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Returns this SafeUrl's value a string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code SafeUrl}, use {@code goog.html.SafeUrl.unwrap} instead of this
- * method. If in doubt, assume that it's security relevant. In particular, note
- * that goog.html functions which return a goog.html type do not guarantee that
- * the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml instanceof
- * // goog.html.SafeHtml.
- * </pre>
- *
- * IMPORTANT: The guarantees of the SafeUrl type contract only extend to the
- * behavior of browsers when interpreting URLs. Values of SafeUrl objects MUST
- * be appropriately escaped before embedding in a HTML document. Note that the
- * required escaping is context-sensitive (e.g. a different escaping is
- * required for embedding a URL in a style property within a style
- * attribute, as opposed to embedding in a href attribute).
- *
- * @see goog.html.SafeUrl#unwrap
- * @override
- */
-goog.html.SafeUrl.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.SafeUrl.prototype.implementsGoogI18nBidiDirectionalString = true;
-
-
-/**
- * Returns this URLs directionality, which is always {@code LTR}.
- * @override
- */
-goog.html.SafeUrl.prototype.getDirection = function() {
-  return goog.i18n.bidi.Dir.LTR;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a SafeUrl, use
-   * {@code goog.html.SafeUrl.unwrap}.
-   *
-   * @see goog.html.SafeUrl#unwrap
-   * @override
-   */
-  goog.html.SafeUrl.prototype.toString = function() {
-    return 'SafeUrl{' + this.privateDoNotAccessOrElseSafeHtmlWrappedValue_ +
-        '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a SafeUrl
- * object, and returns its value.
- *
- * IMPORTANT: The guarantees of the SafeUrl type contract only extend to the
- * behavior of  browsers when interpreting URLs. Values of SafeUrl objects MUST
- * be appropriately escaped before embedding in a HTML document. Note that the
- * required escaping is context-sensitive (e.g. a different escaping is
- * required for embedding a URL in a style property within a style
- * attribute, as opposed to embedding in a href attribute).
- *
- * @param {!goog.html.SafeUrl} safeUrl The object to extract from.
- * @return {string} The SafeUrl object's contained string, unless the run-time
- *     type check fails. In that case, {@code unwrap} returns an innocuous
- *     string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.SafeUrl.unwrap = function(safeUrl) {
-  // Perform additional Run-time type-checking to ensure that safeUrl is indeed
-  // an instance of the expected type.  This provides some additional protection
-  // against security bugs due to application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (safeUrl instanceof goog.html.SafeUrl &&
-      safeUrl.constructor === goog.html.SafeUrl &&
-      safeUrl.SAFE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return safeUrl.privateDoNotAccessOrElseSafeHtmlWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type SafeUrl, got \'' +
-        safeUrl + '\' of type ' + goog.typeOf(safeUrl));
-    return 'type_error:SafeUrl';
-  }
-};
-
-
-/**
- * Creates a SafeUrl object from a compile-time constant string.
- *
- * Compile-time constant strings are inherently program-controlled and hence
- * trusted.
- *
- * @param {!goog.string.Const} url A compile-time-constant string from which to
- *         create a SafeUrl.
- * @return {!goog.html.SafeUrl} A SafeUrl object initialized to {@code url}.
- */
-goog.html.SafeUrl.fromConstant = function(url) {
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
-      goog.string.Const.unwrap(url));
-};
-
-
-/**
- * A pattern that matches Blob or data types that can have SafeUrls created
- * from URL.createObjectURL(blob) or via a data: URI.
- * @const
- * @private
- */
-goog.html.SAFE_MIME_TYPE_PATTERN_ = new RegExp(
-    '^(?:audio/(?:3gpp|3gpp2|aac|midi|mp4|mpeg|ogg|x-m4a|x-wav|webm)|' +
-        'image/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|' +
-        'text/csv|' +
-        'video/(?:mpeg|mp4|ogg|webm))$',
-    'i');
-
-
-/**
- * Creates a SafeUrl wrapping a blob URL for the given {@code blob}.
- *
- * The blob URL is created with {@code URL.createObjectURL}. If the MIME type
- * for {@code blob} is not of a known safe audio, image or video MIME type,
- * then the SafeUrl will wrap {@link #INNOCUOUS_STRING}.
- *
- * @see http://www.w3.org/TR/FileAPI/#url
- * @param {!Blob} blob
- * @return {!goog.html.SafeUrl} The blob URL, or an innocuous string wrapped
- *   as a SafeUrl.
- */
-goog.html.SafeUrl.fromBlob = function(blob) {
-  var url = goog.html.SAFE_MIME_TYPE_PATTERN_.test(blob.type) ?
-      goog.fs.url.createObjectUrl(blob) :
-      goog.html.SafeUrl.INNOCUOUS_STRING;
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
-};
-
-
-/**
- * Matches a base-64 data URL, with the first match group being the MIME type.
- * @const
- * @private
- */
-goog.html.DATA_URL_PATTERN_ = /^data:([^;,]*);base64,[a-z0-9+\/]+=*$/i;
-
-
-/**
- * Creates a SafeUrl wrapping a data: URL, after validating it matches a
- * known-safe audio, image or video MIME type.
- *
- * @param {string} dataUrl A valid base64 data URL with one of the whitelisted
- *     audio, image or video MIME types.
- * @return {!goog.html.SafeUrl} A matching safe URL, or {@link INNOCUOUS_STRING}
- *     wrapped as a SafeUrl if it does not pass.
- */
-goog.html.SafeUrl.fromDataUrl = function(dataUrl) {
-  // There's a slight risk here that a browser sniffs the content type if it
-  // doesn't know the MIME type and executes HTML within the data: URL. For this
-  // to cause XSS it would also have to execute the HTML in the same origin
-  // of the page with the link. It seems unlikely that both of these will
-  // happen, particularly in not really old IEs.
-  var match = dataUrl.match(goog.html.DATA_URL_PATTERN_);
-  var valid = match && goog.html.SAFE_MIME_TYPE_PATTERN_.test(match[1]);
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
-      valid ? dataUrl : goog.html.SafeUrl.INNOCUOUS_STRING);
-};
-
-
-/**
- * Creates a SafeUrl wrapping a tel: URL.
- *
- * @param {string} telUrl A tel URL.
- * @return {!goog.html.SafeUrl} A matching safe URL, or {@link INNOCUOUS_STRING}
- *     wrapped as a SafeUrl if it does not pass.
- */
-goog.html.SafeUrl.fromTelUrl = function(telUrl) {
-  // There's a risk that a tel: URL could immediately place a call once
-  // clicked, without requiring user confirmation. For that reason it is
-  // handled in this separate function.
-  if (!goog.string.caseInsensitiveStartsWith(telUrl, 'tel:')) {
-    telUrl = goog.html.SafeUrl.INNOCUOUS_STRING;
-  }
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
-      telUrl);
-};
-
-
-/**
- * Creates a SafeUrl from TrustedResourceUrl. This is safe because
- * TrustedResourceUrl is more tightly restricted than SafeUrl.
- *
- * @param {!goog.html.TrustedResourceUrl} trustedResourceUrl
- * @return {!goog.html.SafeUrl}
- */
-goog.html.SafeUrl.fromTrustedResourceUrl = function(trustedResourceUrl) {
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
-      goog.html.TrustedResourceUrl.unwrap(trustedResourceUrl));
-};
-
-
-/**
- * A pattern that recognizes a commonly useful subset of URLs that satisfy
- * the SafeUrl contract.
- *
- * This regular expression matches a subset of URLs that will not cause script
- * execution if used in URL context within a HTML document. Specifically, this
- * regular expression matches if (comment from here on and regex copied from
- * Soy's EscapingConventions):
- * (1) Either a protocol in a whitelist (http, https, mailto or ftp).
- * (2) or no protocol.  A protocol must be followed by a colon. The below
- *     allows that by allowing colons only after one of the characters [/?#].
- *     A colon after a hash (#) must be in the fragment.
- *     Otherwise, a colon after a (?) must be in a query.
- *     Otherwise, a colon after a single solidus (/) must be in a path.
- *     Otherwise, a colon after a double solidus (//) must be in the authority
- *     (before port).
- *
- * @private
- * @const {!RegExp}
- */
-goog.html.SAFE_URL_PATTERN_ =
-    /^(?:(?:https?|mailto|ftp):|[^:/?#]*(?:[/?#]|$))/i;
-
-
-/**
- * Creates a SafeUrl object from {@code url}. If {@code url} is a
- * goog.html.SafeUrl then it is simply returned. Otherwise the input string is
- * validated to match a pattern of commonly used safe URLs.
- *
- * {@code url} may be a URL with the http, https, mailto or ftp scheme,
- * or a relative URL (i.e., a URL without a scheme; specifically, a
- * scheme-relative, absolute-path-relative, or path-relative URL).
- *
- * @see http://url.spec.whatwg.org/#concept-relative-url
- * @param {string|!goog.string.TypedString} url The URL to validate.
- * @return {!goog.html.SafeUrl} The validated URL, wrapped as a SafeUrl.
- */
-goog.html.SafeUrl.sanitize = function(url) {
-  if (url instanceof goog.html.SafeUrl) {
-    return url;
-  } else if (url.implementsGoogStringTypedString) {
-    url = url.getTypedStringValue();
-  } else {
-    url = String(url);
-  }
-  if (!goog.html.SAFE_URL_PATTERN_.test(url)) {
-    url = goog.html.SafeUrl.INNOCUOUS_STRING;
-  }
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
-};
-
-/**
- * Creates a SafeUrl object from {@code url}. If {@code url} is a
- * goog.html.SafeUrl then it is simply returned. Otherwise the input string is
- * validated to match a pattern of commonly used safe URLs.
- *
- * {@code url} may be a URL with the http, https, mailto or ftp scheme,
- * or a relative URL (i.e., a URL without a scheme; specifically, a
- * scheme-relative, absolute-path-relative, or path-relative URL).
- *
- * This function asserts (using goog.asserts) that the URL matches this pattern.
- * If it does not, in addition to failing the assert, an innocous URL will be
- * returned.
- *
- * @see http://url.spec.whatwg.org/#concept-relative-url
- * @param {string|!goog.string.TypedString} url The URL to validate.
- * @return {!goog.html.SafeUrl} The validated URL, wrapped as a SafeUrl.
- */
-goog.html.SafeUrl.sanitizeAssertUnchanged = function(url) {
-  if (url instanceof goog.html.SafeUrl) {
-    return url;
-  } else if (url.implementsGoogStringTypedString) {
-    url = url.getTypedStringValue();
-  } else {
-    url = String(url);
-  }
-  if (!goog.asserts.assert(goog.html.SAFE_URL_PATTERN_.test(url))) {
-    url = goog.html.SafeUrl.INNOCUOUS_STRING;
-  }
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
-};
-
-
-
-/**
- * Type marker for the SafeUrl type, used to implement additional run-time
- * type checking.
- * @const {!Object}
- * @private
- */
-goog.html.SafeUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Package-internal utility method to create SafeUrl instances.
- *
- * @param {string} url The string to initialize the SafeUrl object with.
- * @return {!goog.html.SafeUrl} The initialized SafeUrl object.
- * @package
- */
-goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse = function(
-    url) {
-  var safeUrl = new goog.html.SafeUrl();
-  safeUrl.privateDoNotAccessOrElseSafeHtmlWrappedValue_ = url;
-  return safeUrl;
-};
-
-
-/**
- * A SafeUrl corresponding to the special about:blank url.
- * @const {!goog.html.SafeUrl}
- */
-goog.html.SafeUrl.ABOUT_BLANK =
-    goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(
-        'about:blank');
diff --git a/src/http/static/viz/2/goog/html/trustedresourceurl.js b/src/http/static/viz/2/goog/html/trustedresourceurl.js
deleted file mode 100644
index c043ef1..0000000
--- a/src/http/static/viz/2/goog/html/trustedresourceurl.js
+++ /dev/null
@@ -1,408 +0,0 @@
-// Copyright 2013 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview The TrustedResourceUrl type and its builders.
- *
- * TODO(xtof): Link to document stating type contract.
- */
-
-goog.provide('goog.html.TrustedResourceUrl');
-
-goog.require('goog.asserts');
-goog.require('goog.i18n.bidi.Dir');
-goog.require('goog.i18n.bidi.DirectionalString');
-goog.require('goog.string.Const');
-goog.require('goog.string.TypedString');
-
-
-
-/**
- * A URL which is under application control and from which script, CSS, and
- * other resources that represent executable code, can be fetched.
- *
- * Given that the URL can only be constructed from strings under application
- * control and is used to load resources, bugs resulting in a malformed URL
- * should not have a security impact and are likely to be easily detectable
- * during testing. Given the wide number of non-RFC compliant URLs in use,
- * stricter validation could prevent some applications from being able to use
- * this type.
- *
- * Instances of this type must be created via the factory method,
- * ({@code fromConstant}, {@code fromConstants}, {@code format} or {@code
- * formatWithParams}), and not by invoking its constructor. The constructor
- * intentionally takes no parameters and the type is immutable; hence only a
- * default instance corresponding to the empty string can be obtained via
- * constructor invocation.
- *
- * @see goog.html.TrustedResourceUrl#fromConstant
- * @constructor
- * @final
- * @struct
- * @implements {goog.i18n.bidi.DirectionalString}
- * @implements {goog.string.TypedString}
- */
-goog.html.TrustedResourceUrl = function() {
-  /**
-   * The contained value of this TrustedResourceUrl.  The field has a purposely
-   * ugly name to make (non-compiled) code that attempts to directly access this
-   * field stand out.
-   * @private {string}
-   */
-  this.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_ = '';
-
-  /**
-   * A type marker used to implement additional run-time type checking.
-   * @see goog.html.TrustedResourceUrl#unwrap
-   * @const {!Object}
-   * @private
-   */
-  this.TRUSTED_RESOURCE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ =
-      goog.html.TrustedResourceUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.TrustedResourceUrl.prototype.implementsGoogStringTypedString = true;
-
-
-/**
- * Returns this TrustedResourceUrl's value as a string.
- *
- * IMPORTANT: In code where it is security relevant that an object's type is
- * indeed {@code TrustedResourceUrl}, use
- * {@code goog.html.TrustedResourceUrl.unwrap} instead of this method. If in
- * doubt, assume that it's security relevant. In particular, note that
- * goog.html functions which return a goog.html type do not guarantee that
- * the returned instance is of the right type. For example:
- *
- * <pre>
- * var fakeSafeHtml = new String('fake');
- * fakeSafeHtml.__proto__ = goog.html.SafeHtml.prototype;
- * var newSafeHtml = goog.html.SafeHtml.htmlEscape(fakeSafeHtml);
- * // newSafeHtml is just an alias for fakeSafeHtml, it's passed through by
- * // goog.html.SafeHtml.htmlEscape() as fakeSafeHtml instanceof
- * // goog.html.SafeHtml.
- * </pre>
- *
- * @see goog.html.TrustedResourceUrl#unwrap
- * @override
- */
-goog.html.TrustedResourceUrl.prototype.getTypedStringValue = function() {
-  return this.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_;
-};
-
-
-/**
- * @override
- * @const
- */
-goog.html.TrustedResourceUrl.prototype.implementsGoogI18nBidiDirectionalString =
-    true;
-
-
-/**
- * Returns this URLs directionality, which is always {@code LTR}.
- * @override
- */
-goog.html.TrustedResourceUrl.prototype.getDirection = function() {
-  return goog.i18n.bidi.Dir.LTR;
-};
-
-
-if (goog.DEBUG) {
-  /**
-   * Returns a debug string-representation of this value.
-   *
-   * To obtain the actual string value wrapped in a TrustedResourceUrl, use
-   * {@code goog.html.TrustedResourceUrl.unwrap}.
-   *
-   * @see goog.html.TrustedResourceUrl#unwrap
-   * @override
-   */
-  goog.html.TrustedResourceUrl.prototype.toString = function() {
-    return 'TrustedResourceUrl{' +
-        this.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_ + '}';
-  };
-}
-
-
-/**
- * Performs a runtime check that the provided object is indeed a
- * TrustedResourceUrl object, and returns its value.
- *
- * @param {!goog.html.TrustedResourceUrl} trustedResourceUrl The object to
- *     extract from.
- * @return {string} The trustedResourceUrl object's contained string, unless
- *     the run-time type check fails. In that case, {@code unwrap} returns an
- *     innocuous string, or, if assertions are enabled, throws
- *     {@code goog.asserts.AssertionError}.
- */
-goog.html.TrustedResourceUrl.unwrap = function(trustedResourceUrl) {
-  // Perform additional Run-time type-checking to ensure that
-  // trustedResourceUrl is indeed an instance of the expected type.  This
-  // provides some additional protection against security bugs due to
-  // application code that disables type checks.
-  // Specifically, the following checks are performed:
-  // 1. The object is an instance of the expected type.
-  // 2. The object is not an instance of a subclass.
-  // 3. The object carries a type marker for the expected type. "Faking" an
-  // object requires a reference to the type marker, which has names intended
-  // to stand out in code reviews.
-  if (trustedResourceUrl instanceof goog.html.TrustedResourceUrl &&
-      trustedResourceUrl.constructor === goog.html.TrustedResourceUrl &&
-      trustedResourceUrl
-              .TRUSTED_RESOURCE_URL_TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ ===
-          goog.html.TrustedResourceUrl
-              .TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_) {
-    return trustedResourceUrl
-        .privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_;
-  } else {
-    goog.asserts.fail('expected object of type TrustedResourceUrl, got \'' +
-        trustedResourceUrl + '\' of type ' + goog.typeOf(trustedResourceUrl));
-    return 'type_error:TrustedResourceUrl';
-  }
-};
-
-
-/**
- * Creates a TrustedResourceUrl from a format string and arguments.
- *
- * The arguments for interpolation into the format string map labels to values.
- * Values of type `goog.string.Const` are interpolated without modifcation.
- * Values of other types are cast to string and encoded with
- * encodeURIComponent.
- *
- * `%{<label>}` markers are used in the format string to indicate locations
- * to be interpolated with the valued mapped to the given label. `<label>`
- * must contain only alphanumeric and `_` characters.
- *
- * The format string must start with one of the following:
- * - `https://<origin>/`
- * - `//<origin>/`
- * - `/<pathStart>`
- * - `about:blank`
- *
- * `<origin>` must contain only alphanumeric or any of the following: `-.:[]`.
- * `<pathStart>` is any character except `/` and `\`.
- *
- * Example usage:
- *
- *    var url = goog.html.TrustedResourceUrl.format(goog.string.Const.from(
- *        'https://www.google.com/search?q=%{query}), {'query': searchTerm});
- *
- *    var url = goog.html.TrustedResourceUrl.format(goog.string.Const.from(
- *        '//www.youtube.com/v/%{videoId}?hl=en&fs=1%{autoplay}'), {
- *        'videoId': videoId,
- *        'autoplay': opt_autoplay ?
- *            goog.string.Const.EMPTY : goog.string.Const.from('&autoplay=1')
- *    });
- *
- * While this function can be used to create a TrustedResourceUrl from only
- * constants, fromConstant() and fromConstants() are generally preferable for
- * that purpose.
- *
- * @param {!goog.string.Const} format The format string.
- * @param {!Object<string, (string|number|!goog.string.Const)>} args Mapping
- *     of labels to values to be interpolated into the format string.
- *     goog.string.Const values are interpolated without encoding.
- * @return {!goog.html.TrustedResourceUrl}
- * @throws {!Error} On an invalid format string or if a label used in the
- *     the format string is not present in args.
- */
-goog.html.TrustedResourceUrl.format = function(format, args) {
-  var result = goog.html.TrustedResourceUrl.format_(format, args);
-  return goog.html.TrustedResourceUrl
-      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(result);
-};
-
-
-/**
- * String version of TrustedResourceUrl.format.
- * @param {!goog.string.Const} format
- * @param {!Object<string, (string|number|!goog.string.Const)>} args
- * @return {string}
- * @throws {!Error}
- * @private
- */
-goog.html.TrustedResourceUrl.format_ = function(format, args) {
-  var formatStr = goog.string.Const.unwrap(format);
-  if (!goog.html.TrustedResourceUrl.BASE_URL_.test(formatStr)) {
-    throw new Error('Invalid TrustedResourceUrl format: ' + formatStr);
-  }
-  return formatStr.replace(
-      goog.html.TrustedResourceUrl.FORMAT_MARKER_, function(match, id) {
-        if (!Object.prototype.hasOwnProperty.call(args, id)) {
-          throw new Error(
-              'Found marker, "' + id + '", in format string, "' + formatStr +
-              '", but no valid label mapping found ' +
-              'in args: ' + JSON.stringify(args));
-        }
-        var arg = args[id];
-        if (arg instanceof goog.string.Const) {
-          return goog.string.Const.unwrap(arg);
-        } else {
-          return encodeURIComponent(String(arg));
-        }
-      });
-};
-
-
-/**
- * @private @const {!RegExp}
- */
-goog.html.TrustedResourceUrl.FORMAT_MARKER_ = /%{(\w+)}/g;
-
-
-/**
- * The URL must be absolute, scheme-relative or path-absolute. So it must
- * start with:
- * - https:// followed by allowed origin characters.
- * - // followed by allowed origin characters.
- * - / not followed by / or \. There will only be an absolute path.
- *
- * Based on
- * https://url.spec.whatwg.org/commit-snapshots/56b74ce7cca8883eab62e9a12666e2fac665d03d/#url-parsing
- * an initial / which is not followed by another / or \ will end up in the "path
- * state" and from there it can only go to "fragment state" and "query state".
- *
- * We don't enforce a well-formed domain name. So '.' or '1.2' are valid.
- * That's ok because the origin comes from a compile-time constant.
- *
- * A regular expression is used instead of goog.uri for several reasons:
- * - Strictness. E.g. we don't want any userinfo component and we don't
- *   want '/./, nor \' in the first path component.
- * - Small trusted base. goog.uri is generic and might need to change,
- *   reasoning about all the ways it can parse a URL now and in the future
- *   is error-prone.
- * - Code size. We expect many calls to .format(), many of which might
- *   not be using goog.uri.
- * - Simplicity. Using goog.uri would likely not result in simpler nor shorter
- *   code.
- * @private @const {!RegExp}
- */
-goog.html.TrustedResourceUrl.BASE_URL_ =
-    /^(?:https:)?\/\/[0-9a-z.:[\]-]+\/|^\/[^\/\\]|^about:blank(#|$)/i;
-
-
-/**
- * Formats the URL same as TrustedResourceUrl.format and then adds extra URL
- * parameters.
- *
- * Example usage:
- *
- *     // Creates '//www.youtube.com/v/abc?autoplay=1' for videoId='abc' and
- *     // opt_autoplay=1. Creates '//www.youtube.com/v/abc' for videoId='abc'
- *     // and opt_autoplay=undefined.
- *     var url = goog.html.TrustedResourceUrl.formatWithParams(
- *         goog.string.Const.from('//www.youtube.com/v/%{videoId}'),
- *         {'videoId': videoId},
- *         {'autoplay': opt_autoplay});
- *
- * @param {!goog.string.Const} format The format string.
- * @param {!Object<string, (string|number|!goog.string.Const)>} args Mapping
- *     of labels to values to be interpolated into the format string.
- *     goog.string.Const values are interpolated without encoding.
- * @param {!Object<string, *>} params Parameters to add to URL. Parameters with
- *     value {@code null} or {@code undefined} are skipped. Both keys and values
- *     are encoded. Note that JavaScript doesn't guarantee the order of values
- *     in an object which might result in non-deterministic order of the
- *     parameters. However, browsers currently preserve the order.
- * @return {!goog.html.TrustedResourceUrl}
- * @throws {!Error} On an invalid format string or if a label used in the
- *     the format string is not present in args.
- */
-goog.html.TrustedResourceUrl.formatWithParams = function(format, args, params) {
-  var url = goog.html.TrustedResourceUrl.format_(format, args);
-  var separator = /\?/.test(url) ? '&' : '?';
-  for (var key in params) {
-    if (params[key] == null) {
-      continue;
-    }
-    url += separator + encodeURIComponent(key) + '=' +
-        encodeURIComponent(String(params[key]));
-    separator = '&';
-  }
-  return goog.html.TrustedResourceUrl
-      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(url);
-};
-
-
-/**
- * Creates a TrustedResourceUrl object from a compile-time constant string.
- *
- * Compile-time constant strings are inherently program-controlled and hence
- * trusted.
- *
- * @param {!goog.string.Const} url A compile-time-constant string from which to
- *     create a TrustedResourceUrl.
- * @return {!goog.html.TrustedResourceUrl} A TrustedResourceUrl object
- *     initialized to {@code url}.
- */
-goog.html.TrustedResourceUrl.fromConstant = function(url) {
-  return goog.html.TrustedResourceUrl
-      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(
-          goog.string.Const.unwrap(url));
-};
-
-
-/**
- * Creates a TrustedResourceUrl object from a compile-time constant strings.
- *
- * Compile-time constant strings are inherently program-controlled and hence
- * trusted.
- *
- * @param {!Array<!goog.string.Const>} parts Compile-time-constant strings from
- *     which to create a TrustedResourceUrl.
- * @return {!goog.html.TrustedResourceUrl} A TrustedResourceUrl object
- *     initialized to concatenation of {@code parts}.
- */
-goog.html.TrustedResourceUrl.fromConstants = function(parts) {
-  var unwrapped = '';
-  for (var i = 0; i < parts.length; i++) {
-    unwrapped += goog.string.Const.unwrap(parts[i]);
-  }
-  return goog.html.TrustedResourceUrl
-      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(unwrapped);
-};
-
-
-/**
- * Type marker for the TrustedResourceUrl type, used to implement additional
- * run-time type checking.
- * @const {!Object}
- * @private
- */
-goog.html.TrustedResourceUrl.TYPE_MARKER_GOOG_HTML_SECURITY_PRIVATE_ = {};
-
-
-/**
- * Package-internal utility method to create TrustedResourceUrl instances.
- *
- * @param {string} url The string to initialize the TrustedResourceUrl object
- *     with.
- * @return {!goog.html.TrustedResourceUrl} The initialized TrustedResourceUrl
- *     object.
- * @package
- */
-goog.html.TrustedResourceUrl
-    .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse = function(url) {
-  var trustedResourceUrl = new goog.html.TrustedResourceUrl();
-  trustedResourceUrl.privateDoNotAccessOrElseTrustedResourceUrlWrappedValue_ =
-      url;
-  return trustedResourceUrl;
-};
diff --git a/src/http/static/viz/2/goog/html/uncheckedconversions.js b/src/http/static/viz/2/goog/html/uncheckedconversions.js
deleted file mode 100644
index e96697c..0000000
--- a/src/http/static/viz/2/goog/html/uncheckedconversions.js
+++ /dev/null
@@ -1,228 +0,0 @@
-// Copyright 2013 The Closure Library Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS-IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-/**
- * @fileoverview Unchecked conversions to create values of goog.html types from
- * plain strings.  Use of these functions could potentially result in instances
- * of goog.html types that violate their type contracts, and hence result in
- * security vulnerabilties.
- *
- * Therefore, all uses of the methods herein must be carefully security
- * reviewed.  Avoid use of the methods in this file whenever possible; instead
- * prefer to create instances of goog.html types using inherently safe builders
- * or template systems.
- *
- *
- *
- * @visibility {//closure/goog/html:approved_for_unchecked_conversion}
- * @visibility {//closure/goog/bin/sizetests:__pkg__}
- */
-
-
-goog.provide('goog.html.uncheckedconversions');
-
-goog.require('goog.asserts');
-goog.require('goog.html.SafeHtml');
-goog.require('goog.html.SafeScript');
-goog.require('goog.html.SafeStyle');
-goog.require('goog.html.SafeStyleSheet');
-goog.require('goog.html.SafeUrl');
-goog.require('goog.html.TrustedResourceUrl');
-goog.require('goog.string');
-goog.require('goog.string.Const');
-
-
-/**
- * Performs an "unchecked conversion" to SafeHtml from a plain string that is
- * known to satisfy the SafeHtml type contract.
- *
- * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
- * that the value of {@code html} satisfies the SafeHtml type contract in all
- * possible program states.
- *
- *
- * @param {!goog.string.Const} justification A constant string explaining why
- *     this use of this method is safe. May include a security review ticket
- *     number.
- * @param {string} html A string that is claimed to adhere to the SafeHtml
- *     contract.
- * @param {?goog.i18n.bidi.Dir=} opt_dir The optional directionality of the
- *     SafeHtml to be constructed. A null or undefined value signifies an
- *     unknown directionality.
- * @return {!goog.html.SafeHtml} The value of html, wrapped in a SafeHtml
- *     object.
- */
-goog.html.uncheckedconversions.safeHtmlFromStringKnownToSatisfyTypeContract =
-    function(justification, html, opt_dir) {
-  // unwrap() called inside an assert so that justification can be optimized
-  // away in production code.
-  goog.asserts.assertString(
-      goog.string.Const.unwrap(justification), 'must provide justification');
-  goog.asserts.assert(
-      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
-      'must provide non-empty justification');
-  return goog.html.SafeHtml.createSafeHtmlSecurityPrivateDoNotAccessOrElse(
-      html, opt_dir || null);
-};
-
-
-/**
- * Performs an "unchecked conversion" to SafeScript from a plain string that is
- * known to satisfy the SafeScript type contract.
- *
- * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
- * that the value of {@code script} satisfies the SafeScript type contract in
- * all possible program states.
- *
- *
- * @param {!goog.string.Const} justification A constant string explaining why
- *     this use of this method is safe. May include a security review ticket
- *     number.
- * @param {string} script The string to wrap as a SafeScript.
- * @return {!goog.html.SafeScript} The value of {@code script}, wrapped in a
- *     SafeScript object.
- */
-goog.html.uncheckedconversions.safeScriptFromStringKnownToSatisfyTypeContract =
-    function(justification, script) {
-  // unwrap() called inside an assert so that justification can be optimized
-  // away in production code.
-  goog.asserts.assertString(
-      goog.string.Const.unwrap(justification), 'must provide justification');
-  goog.asserts.assert(
-      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
-      'must provide non-empty justification');
-  return goog.html.SafeScript.createSafeScriptSecurityPrivateDoNotAccessOrElse(
-      script);
-};
-
-
-/**
- * Performs an "unchecked conversion" to SafeStyle from a plain string that is
- * known to satisfy the SafeStyle type contract.
- *
- * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
- * that the value of {@code style} satisfies the SafeStyle type contract in all
- * possible program states.
- *
- *
- * @param {!goog.string.Const} justification A constant string explaining why
- *     this use of this method is safe. May include a security review ticket
- *     number.
- * @param {string} style The string to wrap as a SafeStyle.
- * @return {!goog.html.SafeStyle} The value of {@code style}, wrapped in a
- *     SafeStyle object.
- */
-goog.html.uncheckedconversions.safeStyleFromStringKnownToSatisfyTypeContract =
-    function(justification, style) {
-  // unwrap() called inside an assert so that justification can be optimized
-  // away in production code.
-  goog.asserts.assertString(
-      goog.string.Const.unwrap(justification), 'must provide justification');
-  goog.asserts.assert(
-      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
-      'must provide non-empty justification');
-  return goog.html.SafeStyle.createSafeStyleSecurityPrivateDoNotAccessOrElse(
-      style);
-};
-
-
-/**
- * Performs an "unchecked conversion" to SafeStyleSheet from a plain string
- * that is known to satisfy the SafeStyleSheet type contract.
- *
- * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
- * that the value of {@code styleSheet} satisfies the SafeStyleSheet type
- * contract in all possible program states.
- *
- *
- * @param {!goog.string.Const} justification A constant string explaining why
- *     this use of this method is safe. May include a security review ticket
- *     number.
- * @param {string} styleSheet The string to wrap as a SafeStyleSheet.
- * @return {!goog.html.SafeStyleSheet} The value of {@code styleSheet}, wrapped
- *     in a SafeStyleSheet object.
- */
-goog.html.uncheckedconversions
-    .safeStyleSheetFromStringKnownToSatisfyTypeContract = function(
-    justification, styleSheet) {
-  // unwrap() called inside an assert so that justification can be optimized
-  // away in production code.
-  goog.asserts.assertString(
-      goog.string.Const.unwrap(justification), 'must provide justification');
-  goog.asserts.assert(
-      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
-      'must provide non-empty justification');
-  return goog.html.SafeStyleSheet
-      .createSafeStyleSheetSecurityPrivateDoNotAccessOrElse(styleSheet);
-};
-
-
-/**
- * Performs an "unchecked conversion" to SafeUrl from a plain string that is
- * known to satisfy the SafeUrl type contract.
- *
- * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
- * that the value of {@code url} satisfies the SafeUrl type contract in all
- * possible program states.
- *
- *
- * @param {!goog.string.Const} justification A constant string explaining why
- *     this use of this method is safe. May include a security review ticket
- *     number.
- * @param {string} url The string to wrap as a SafeUrl.
- * @return {!goog.html.SafeUrl} The value of {@code url}, wrapped in a SafeUrl
- *     object.
- */
-goog.html.uncheckedconversions.safeUrlFromStringKnownToSatisfyTypeContract =
-    function(justification, url) {
-  // unwrap() called inside an assert so that justification can be optimized
-  // away in production code.
-  goog.asserts.assertString(
-      goog.string.Const.unwrap(justification), 'must provide justification');
-  goog.asserts.assert(
-      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
-      'must provide non-empty justification');
-  return goog.html.SafeUrl.createSafeUrlSecurityPrivateDoNotAccessOrElse(url);
-};
-
-
-/**
- * Performs an "unchecked conversion" to TrustedResourceUrl from a plain string
- * that is known to satisfy the TrustedResourceUrl type contract.
- *
- * IMPORTANT: Uses of this method must be carefully security-reviewed to ensure
- * that the value of {@code url} satisfies the TrustedResourceUrl type contract
- * in all possible program states.
- *
- *
- * @param {!goog.string.Const} justification A constant string explaining why
- *     this use of this method is safe. May include a security review ticket
- *     number.
- * @param {string} url The string to wrap as a TrustedResourceUrl.
- * @return {!goog.html.TrustedResourceUrl} The value of {@code url}, wrapped in
- *     a TrustedResourceUrl object.
- */
-goog.html.uncheckedconversions
-    .trustedResourceUrlFromStringKnownToSatisfyTypeContract = function(
-    justification, url) {
-  // unwrap() called inside an assert so that justification can be optimized
-  // away in production code.
-  goog.asserts.assertString(
-      goog.string.Const.unwrap(justification), 'must provide justification');
-  goog.asserts.assert(
-      !goog.string.isEmptyOrWhitespace(goog.string.Const.unwrap(justification)),
-      'must provide non-empty justification');
-  return goog.html.TrustedResourceUrl
-      .createTrustedResourceUrlSecurityPrivateDoNotAccessOrElse(url);
-};