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diff --git a/static/src/assets/viz/2/goog/uri/utils.js b/static/src/assets/viz/2/goog/uri/utils.js
deleted file mode 100644
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--- a/static/src/assets/viz/2/goog/uri/utils.js
+++ /dev/null
@@ -1,1103 +0,0 @@
-// Copyright 2008 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 Simple utilities for dealing with URI strings.
- *
- * This is intended to be a lightweight alternative to constructing goog.Uri
- * objects.  Whereas goog.Uri adds several kilobytes to the binary regardless
- * of how much of its functionality you use, this is designed to be a set of
- * mostly-independent utilities so that the compiler includes only what is
- * necessary for the task.  Estimated savings of porting is 5k pre-gzip and
- * 1.5k post-gzip.  To ensure the savings remain, future developers should
- * avoid adding new functionality to existing functions, but instead create
- * new ones and factor out shared code.
- *
- * Many of these utilities have limited functionality, tailored to common
- * cases.  The query parameter utilities assume that the parameter keys are
- * already encoded, since most keys are compile-time alphanumeric strings.  The
- * query parameter mutation utilities also do not tolerate fragment identifiers.
- *
- * By design, these functions can be slower than goog.Uri equivalents.
- * Repeated calls to some of functions may be quadratic in behavior for IE,
- * although the effect is somewhat limited given the 2kb limit.
- *
- * One advantage of the limited functionality here is that this approach is
- * less sensitive to differences in URI encodings than goog.Uri, since these
- * functions operate on strings directly, rather than decoding them and
- * then re-encoding.
- *
- * Uses features of RFC 3986 for parsing/formatting URIs:
- *   http://www.ietf.org/rfc/rfc3986.txt
- *
- * @author gboyer@google.com (Garrett Boyer) - The "lightened" design.
- * @author msamuel@google.com (Mike Samuel) - Domain knowledge and regexes.
- */
-
-goog.provide('goog.uri.utils');
-goog.provide('goog.uri.utils.ComponentIndex');
-goog.provide('goog.uri.utils.QueryArray');
-goog.provide('goog.uri.utils.QueryValue');
-goog.provide('goog.uri.utils.StandardQueryParam');
-
-goog.require('goog.array');
-goog.require('goog.asserts');
-goog.require('goog.string');
-
-
-/**
- * Character codes inlined to avoid object allocations due to charCode.
- * @enum {number}
- * @private
- */
-goog.uri.utils.CharCode_ = {
-  AMPERSAND: 38,
-  EQUAL: 61,
-  HASH: 35,
-  QUESTION: 63
-};
-
-
-/**
- * Builds a URI string from already-encoded parts.
- *
- * No encoding is performed.  Any component may be omitted as either null or
- * undefined.
- *
- * @param {?string=} opt_scheme The scheme such as 'http'.
- * @param {?string=} opt_userInfo The user name before the '@'.
- * @param {?string=} opt_domain The domain such as 'www.google.com', already
- *     URI-encoded.
- * @param {(string|number|null)=} opt_port The port number.
- * @param {?string=} opt_path The path, already URI-encoded.  If it is not
- *     empty, it must begin with a slash.
- * @param {?string=} opt_queryData The URI-encoded query data.
- * @param {?string=} opt_fragment The URI-encoded fragment identifier.
- * @return {string} The fully combined URI.
- */
-goog.uri.utils.buildFromEncodedParts = function(
-    opt_scheme, opt_userInfo, opt_domain, opt_port, opt_path, opt_queryData,
-    opt_fragment) {
-  var out = '';
-
-  if (opt_scheme) {
-    out += opt_scheme + ':';
-  }
-
-  if (opt_domain) {
-    out += '//';
-
-    if (opt_userInfo) {
-      out += opt_userInfo + '@';
-    }
-
-    out += opt_domain;
-
-    if (opt_port) {
-      out += ':' + opt_port;
-    }
-  }
-
-  if (opt_path) {
-    out += opt_path;
-  }
-
-  if (opt_queryData) {
-    out += '?' + opt_queryData;
-  }
-
-  if (opt_fragment) {
-    out += '#' + opt_fragment;
-  }
-
-  return out;
-};
-
-
-/**
- * A regular expression for breaking a URI into its component parts.
- *
- * {@link http://www.ietf.org/rfc/rfc3986.txt} says in Appendix B
- * As the "first-match-wins" algorithm is identical to the "greedy"
- * disambiguation method used by POSIX regular expressions, it is natural and
- * commonplace to use a regular expression for parsing the potential five
- * components of a URI reference.
- *
- * The following line is the regular expression for breaking-down a
- * well-formed URI reference into its components.
- *
- * <pre>
- * ^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?
- *  12            3  4          5       6  7        8 9
- * </pre>
- *
- * The numbers in the second line above are only to assist readability; they
- * indicate the reference points for each subexpression (i.e., each paired
- * parenthesis). We refer to the value matched for subexpression <n> as $<n>.
- * For example, matching the above expression to
- * <pre>
- *     http://www.ics.uci.edu/pub/ietf/uri/#Related
- * </pre>
- * results in the following subexpression matches:
- * <pre>
- *    $1 = http:
- *    $2 = http
- *    $3 = //www.ics.uci.edu
- *    $4 = www.ics.uci.edu
- *    $5 = /pub/ietf/uri/
- *    $6 = <undefined>
- *    $7 = <undefined>
- *    $8 = #Related
- *    $9 = Related
- * </pre>
- * where <undefined> indicates that the component is not present, as is the
- * case for the query component in the above example. Therefore, we can
- * determine the value of the five components as
- * <pre>
- *    scheme    = $2
- *    authority = $4
- *    path      = $5
- *    query     = $7
- *    fragment  = $9
- * </pre>
- *
- * The regular expression has been modified slightly to expose the
- * userInfo, domain, and port separately from the authority.
- * The modified version yields
- * <pre>
- *    $1 = http              scheme
- *    $2 = <undefined>       userInfo -\
- *    $3 = www.ics.uci.edu   domain     | authority
- *    $4 = <undefined>       port     -/
- *    $5 = /pub/ietf/uri/    path
- *    $6 = <undefined>       query without ?
- *    $7 = Related           fragment without #
- * </pre>
- * @type {!RegExp}
- * @private
- */
-goog.uri.utils.splitRe_ = new RegExp(
-    '^' +
-    '(?:' +
-    '([^:/?#.]+)' +  // scheme - ignore special characters
-                     // used by other URL parts such as :,
-                     // ?, /, #, and .
-    ':)?' +
-    '(?://' +
-    '(?:([^/?#]*)@)?' +  // userInfo
-    '([^/#?]*?)' +       // domain
-    '(?::([0-9]+))?' +   // port
-    '(?=[/#?]|$)' +      // authority-terminating character
-    ')?' +
-    '([^?#]+)?' +          // path
-    '(?:\\?([^#]*))?' +    // query
-    '(?:#([\\s\\S]*))?' +  // fragment
-    '$');
-
-
-/**
- * The index of each URI component in the return value of goog.uri.utils.split.
- * @enum {number}
- */
-goog.uri.utils.ComponentIndex = {
-  SCHEME: 1,
-  USER_INFO: 2,
-  DOMAIN: 3,
-  PORT: 4,
-  PATH: 5,
-  QUERY_DATA: 6,
-  FRAGMENT: 7
-};
-
-
-/**
- * Splits a URI into its component parts.
- *
- * Each component can be accessed via the component indices; for example:
- * <pre>
- * goog.uri.utils.split(someStr)[goog.uri.utils.ComponentIndex.QUERY_DATA];
- * </pre>
- *
- * @param {string} uri The URI string to examine.
- * @return {!Array<string|undefined>} Each component still URI-encoded.
- *     Each component that is present will contain the encoded value, whereas
- *     components that are not present will be undefined or empty, depending
- *     on the browser's regular expression implementation.  Never null, since
- *     arbitrary strings may still look like path names.
- */
-goog.uri.utils.split = function(uri) {
-  // See @return comment -- never null.
-  return /** @type {!Array<string|undefined>} */ (
-      uri.match(goog.uri.utils.splitRe_));
-};
-
-
-/**
- * @param {?string} uri A possibly null string.
- * @param {boolean=} opt_preserveReserved If true, percent-encoding of RFC-3986
- *     reserved characters will not be removed.
- * @return {?string} The string URI-decoded, or null if uri is null.
- * @private
- */
-goog.uri.utils.decodeIfPossible_ = function(uri, opt_preserveReserved) {
-  if (!uri) {
-    return uri;
-  }
-
-  return opt_preserveReserved ? decodeURI(uri) : decodeURIComponent(uri);
-};
-
-
-/**
- * Gets a URI component by index.
- *
- * It is preferred to use the getPathEncoded() variety of functions ahead,
- * since they are more readable.
- *
- * @param {goog.uri.utils.ComponentIndex} componentIndex The component index.
- * @param {string} uri The URI to examine.
- * @return {?string} The still-encoded component, or null if the component
- *     is not present.
- * @private
- */
-goog.uri.utils.getComponentByIndex_ = function(componentIndex, uri) {
-  // Convert undefined, null, and empty string into null.
-  return goog.uri.utils.split(uri)[componentIndex] || null;
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The protocol or scheme, or null if none.  Does not
- *     include trailing colons or slashes.
- */
-goog.uri.utils.getScheme = function(uri) {
-  return goog.uri.utils.getComponentByIndex_(
-      goog.uri.utils.ComponentIndex.SCHEME, uri);
-};
-
-
-/**
- * Gets the effective scheme for the URL.  If the URL is relative then the
- * scheme is derived from the page's location.
- * @param {string} uri The URI to examine.
- * @return {string} The protocol or scheme, always lower case.
- */
-goog.uri.utils.getEffectiveScheme = function(uri) {
-  var scheme = goog.uri.utils.getScheme(uri);
-  if (!scheme && goog.global.self && goog.global.self.location) {
-    var protocol = goog.global.self.location.protocol;
-    scheme = protocol.substr(0, protocol.length - 1);
-  }
-  // NOTE: When called from a web worker in Firefox 3.5, location maybe null.
-  // All other browsers with web workers support self.location from the worker.
-  return scheme ? scheme.toLowerCase() : '';
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The user name still encoded, or null if none.
- */
-goog.uri.utils.getUserInfoEncoded = function(uri) {
-  return goog.uri.utils.getComponentByIndex_(
-      goog.uri.utils.ComponentIndex.USER_INFO, uri);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The decoded user info, or null if none.
- */
-goog.uri.utils.getUserInfo = function(uri) {
-  return goog.uri.utils.decodeIfPossible_(
-      goog.uri.utils.getUserInfoEncoded(uri));
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The domain name still encoded, or null if none.
- */
-goog.uri.utils.getDomainEncoded = function(uri) {
-  return goog.uri.utils.getComponentByIndex_(
-      goog.uri.utils.ComponentIndex.DOMAIN, uri);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The decoded domain, or null if none.
- */
-goog.uri.utils.getDomain = function(uri) {
-  return goog.uri.utils.decodeIfPossible_(
-      goog.uri.utils.getDomainEncoded(uri), true /* opt_preserveReserved */);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?number} The port number, or null if none.
- */
-goog.uri.utils.getPort = function(uri) {
-  // Coerce to a number.  If the result of getComponentByIndex_ is null or
-  // non-numeric, the number coersion yields NaN.  This will then return
-  // null for all non-numeric cases (though also zero, which isn't a relevant
-  // port number).
-  return Number(
-             goog.uri.utils.getComponentByIndex_(
-                 goog.uri.utils.ComponentIndex.PORT, uri)) ||
-      null;
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The path still encoded, or null if none. Includes the
- *     leading slash, if any.
- */
-goog.uri.utils.getPathEncoded = function(uri) {
-  return goog.uri.utils.getComponentByIndex_(
-      goog.uri.utils.ComponentIndex.PATH, uri);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The decoded path, or null if none.  Includes the leading
- *     slash, if any.
- */
-goog.uri.utils.getPath = function(uri) {
-  return goog.uri.utils.decodeIfPossible_(
-      goog.uri.utils.getPathEncoded(uri), true /* opt_preserveReserved */);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The query data still encoded, or null if none.  Does not
- *     include the question mark itself.
- */
-goog.uri.utils.getQueryData = function(uri) {
-  return goog.uri.utils.getComponentByIndex_(
-      goog.uri.utils.ComponentIndex.QUERY_DATA, uri);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The fragment identifier, or null if none.  Does not
- *     include the hash mark itself.
- */
-goog.uri.utils.getFragmentEncoded = function(uri) {
-  // The hash mark may not appear in any other part of the URL.
-  var hashIndex = uri.indexOf('#');
-  return hashIndex < 0 ? null : uri.substr(hashIndex + 1);
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @param {?string} fragment The encoded fragment identifier, or null if none.
- *     Does not include the hash mark itself.
- * @return {string} The URI with the fragment set.
- */
-goog.uri.utils.setFragmentEncoded = function(uri, fragment) {
-  return goog.uri.utils.removeFragment(uri) + (fragment ? '#' + fragment : '');
-};
-
-
-/**
- * @param {string} uri The URI to examine.
- * @return {?string} The decoded fragment identifier, or null if none.  Does
- *     not include the hash mark.
- */
-goog.uri.utils.getFragment = function(uri) {
-  return goog.uri.utils.decodeIfPossible_(
-      goog.uri.utils.getFragmentEncoded(uri));
-};
-
-
-/**
- * Extracts everything up to the port of the URI.
- * @param {string} uri The URI string.
- * @return {string} Everything up to and including the port.
- */
-goog.uri.utils.getHost = function(uri) {
-  var pieces = goog.uri.utils.split(uri);
-  return goog.uri.utils.buildFromEncodedParts(
-      pieces[goog.uri.utils.ComponentIndex.SCHEME],
-      pieces[goog.uri.utils.ComponentIndex.USER_INFO],
-      pieces[goog.uri.utils.ComponentIndex.DOMAIN],
-      pieces[goog.uri.utils.ComponentIndex.PORT]);
-};
-
-
-/**
- * Returns the origin for a given URL.
- * @param {string} uri The URI string.
- * @return {string} Everything up to and including the port.
- */
-goog.uri.utils.getOrigin = function(uri) {
-  var pieces = goog.uri.utils.split(uri);
-  return goog.uri.utils.buildFromEncodedParts(
-      pieces[goog.uri.utils.ComponentIndex.SCHEME], null /* opt_userInfo */,
-      pieces[goog.uri.utils.ComponentIndex.DOMAIN],
-      pieces[goog.uri.utils.ComponentIndex.PORT]);
-};
-
-
-/**
- * Extracts the path of the URL and everything after.
- * @param {string} uri The URI string.
- * @return {string} The URI, starting at the path and including the query
- *     parameters and fragment identifier.
- */
-goog.uri.utils.getPathAndAfter = function(uri) {
-  var pieces = goog.uri.utils.split(uri);
-  return goog.uri.utils.buildFromEncodedParts(
-      null, null, null, null, pieces[goog.uri.utils.ComponentIndex.PATH],
-      pieces[goog.uri.utils.ComponentIndex.QUERY_DATA],
-      pieces[goog.uri.utils.ComponentIndex.FRAGMENT]);
-};
-
-
-/**
- * Gets the URI with the fragment identifier removed.
- * @param {string} uri The URI to examine.
- * @return {string} Everything preceding the hash mark.
- */
-goog.uri.utils.removeFragment = function(uri) {
-  // The hash mark may not appear in any other part of the URL.
-  var hashIndex = uri.indexOf('#');
-  return hashIndex < 0 ? uri : uri.substr(0, hashIndex);
-};
-
-
-/**
- * Ensures that two URI's have the exact same domain, scheme, and port.
- *
- * Unlike the version in goog.Uri, this checks protocol, and therefore is
- * suitable for checking against the browser's same-origin policy.
- *
- * @param {string} uri1 The first URI.
- * @param {string} uri2 The second URI.
- * @return {boolean} Whether they have the same scheme, domain and port.
- */
-goog.uri.utils.haveSameDomain = function(uri1, uri2) {
-  var pieces1 = goog.uri.utils.split(uri1);
-  var pieces2 = goog.uri.utils.split(uri2);
-  return pieces1[goog.uri.utils.ComponentIndex.DOMAIN] ==
-      pieces2[goog.uri.utils.ComponentIndex.DOMAIN] &&
-      pieces1[goog.uri.utils.ComponentIndex.SCHEME] ==
-      pieces2[goog.uri.utils.ComponentIndex.SCHEME] &&
-      pieces1[goog.uri.utils.ComponentIndex.PORT] ==
-      pieces2[goog.uri.utils.ComponentIndex.PORT];
-};
-
-
-/**
- * Asserts that there are no fragment or query identifiers, only in uncompiled
- * mode.
- * @param {string} uri The URI to examine.
- * @private
- */
-goog.uri.utils.assertNoFragmentsOrQueries_ = function(uri) {
-  goog.asserts.assert(
-      uri.indexOf('#') < 0 && uri.indexOf('?') < 0,
-      'goog.uri.utils: Fragment or query identifiers are not supported: [%s]',
-      uri);
-};
-
-
-/**
- * Supported query parameter values by the parameter serializing utilities.
- *
- * If a value is null or undefined, the key-value pair is skipped, as an easy
- * way to omit parameters conditionally.  Non-array parameters are converted
- * to a string and URI encoded.  Array values are expanded into multiple
- * &key=value pairs, with each element stringized and URI-encoded.
- *
- * @typedef {*}
- */
-goog.uri.utils.QueryValue;
-
-
-/**
- * An array representing a set of query parameters with alternating keys
- * and values.
- *
- * Keys are assumed to be URI encoded already and live at even indices.  See
- * goog.uri.utils.QueryValue for details on how parameter values are encoded.
- *
- * Example:
- * <pre>
- * var data = [
- *   // Simple param: ?name=BobBarker
- *   'name', 'BobBarker',
- *   // Conditional param -- may be omitted entirely.
- *   'specialDietaryNeeds', hasDietaryNeeds() ? getDietaryNeeds() : null,
- *   // Multi-valued param: &house=LosAngeles&house=NewYork&house=null
- *   'house', ['LosAngeles', 'NewYork', null]
- * ];
- * </pre>
- *
- * @typedef {!Array<string|goog.uri.utils.QueryValue>}
- */
-goog.uri.utils.QueryArray;
-
-
-/**
- * Parses encoded query parameters and calls callback function for every
- * parameter found in the string.
- *
- * Missing value of parameter (e.g. “…&key&…”) is treated as if the value was an
- * empty string.  Keys may be empty strings (e.g. “…&=value&…”) which also means
- * that “…&=&…” and “…&&…” will result in an empty key and value.
- *
- * @param {string} encodedQuery Encoded query string excluding question mark at
- *     the beginning.
- * @param {function(string, string)} callback Function called for every
- *     parameter found in query string.  The first argument (name) will not be
- *     urldecoded (so the function is consistent with buildQueryData), but the
- *     second will.  If the parameter has no value (i.e. “=” was not present)
- *     the second argument (value) will be an empty string.
- */
-goog.uri.utils.parseQueryData = function(encodedQuery, callback) {
-  if (!encodedQuery) {
-    return;
-  }
-  var pairs = encodedQuery.split('&');
-  for (var i = 0; i < pairs.length; i++) {
-    var indexOfEquals = pairs[i].indexOf('=');
-    var name = null;
-    var value = null;
-    if (indexOfEquals >= 0) {
-      name = pairs[i].substring(0, indexOfEquals);
-      value = pairs[i].substring(indexOfEquals + 1);
-    } else {
-      name = pairs[i];
-    }
-    callback(name, value ? goog.string.urlDecode(value) : '');
-  }
-};
-
-
-/**
- * Split the URI into 3 parts where the [1] is the queryData without a leading
- * '?'. For example, the URI http://foo.com/bar?a=b#abc returns
- * ['http://foo.com/bar','a=b','#abc'].
- * @param {string} uri The URI to parse.
- * @return {!Array<string>} An array representation of uri of length 3 where the
- *     middle value is the queryData without a leading '?'.
- * @private
- */
-goog.uri.utils.splitQueryData_ = function(uri) {
-  // Find the query data and and hash.
-  var hashIndex = uri.indexOf('#');
-  if (hashIndex < 0) {
-    hashIndex = uri.length;
-  }
-  var questionIndex = uri.indexOf('?');
-  var queryData;
-  if (questionIndex < 0 || questionIndex > hashIndex) {
-    questionIndex = hashIndex;
-    queryData = '';
-  } else {
-    queryData = uri.substring(questionIndex + 1, hashIndex);
-  }
-  return [uri.substr(0, questionIndex), queryData, uri.substr(hashIndex)];
-};
-
-
-/**
- * Join an array created by splitQueryData_ back into a URI.
- * @param {!Array<string>} parts A URI in the form generated by splitQueryData_.
- * @return {string} The joined URI.
- * @private
- */
-goog.uri.utils.joinQueryData_ = function(parts) {
-  return parts[0] + (parts[1] ? '?' + parts[1] : '') + parts[2];
-};
-
-
-/**
- * @param {string} queryData
- * @param {string} newData
- * @return {string}
- * @private
- */
-goog.uri.utils.appendQueryData_ = function(queryData, newData) {
-  if (!newData) {
-    return queryData;
-  }
-  return queryData ? queryData + '&' + newData : newData;
-};
-
-
-/**
- * @param {string} uri
- * @param {string} queryData
- * @return {string}
- * @private
- */
-goog.uri.utils.appendQueryDataToUri_ = function(uri, queryData) {
-  if (!queryData) {
-    return uri;
-  }
-  var parts = goog.uri.utils.splitQueryData_(uri);
-  parts[1] = goog.uri.utils.appendQueryData_(parts[1], queryData);
-  return goog.uri.utils.joinQueryData_(parts);
-};
-
-
-/**
- * Appends key=value pairs to an array, supporting multi-valued objects.
- * @param {*} key The key prefix.
- * @param {goog.uri.utils.QueryValue} value The value to serialize.
- * @param {!Array<string>} pairs The array to which the 'key=value' strings
- *     should be appended.
- * @private
- */
-goog.uri.utils.appendKeyValuePairs_ = function(key, value, pairs) {
-  goog.asserts.assertString(key);
-  if (goog.isArray(value)) {
-    // Convince the compiler it's an array.
-    goog.asserts.assertArray(value);
-    for (var j = 0; j < value.length; j++) {
-      // Convert to string explicitly, to short circuit the null and array
-      // logic in this function -- this ensures that null and undefined get
-      // written as literal 'null' and 'undefined', and arrays don't get
-      // expanded out but instead encoded in the default way.
-      goog.uri.utils.appendKeyValuePairs_(key, String(value[j]), pairs);
-    }
-  } else if (value != null) {
-    // Skip a top-level null or undefined entirely.
-    pairs.push(
-        key +
-        // Check for empty string. Zero gets encoded into the url as literal
-        // strings.  For empty string, skip the equal sign, to be consistent
-        // with UriBuilder.java.
-        (value === '' ? '' : '=' + goog.string.urlEncode(value)));
-  }
-};
-
-
-/**
- * Builds a query data string from a sequence of alternating keys and values.
- * Currently generates "&key&" for empty args.
- *
- * @param {!IArrayLike<string|goog.uri.utils.QueryValue>} keysAndValues
- *     Alternating keys and values. See the QueryArray typedef.
- * @param {number=} opt_startIndex A start offset into the arary, defaults to 0.
- * @return {string} The encoded query string, in the form 'a=1&b=2'.
- */
-goog.uri.utils.buildQueryData = function(keysAndValues, opt_startIndex) {
-  goog.asserts.assert(
-      Math.max(keysAndValues.length - (opt_startIndex || 0), 0) % 2 == 0,
-      'goog.uri.utils: Key/value lists must be even in length.');
-
-  var params = [];
-  for (var i = opt_startIndex || 0; i < keysAndValues.length; i += 2) {
-    var key = /** @type {string} */ (keysAndValues[i]);
-    goog.uri.utils.appendKeyValuePairs_(key, keysAndValues[i + 1], params);
-  }
-  return params.join('&');
-};
-
-
-/**
- * Builds a query data string from a map.
- * Currently generates "&key&" for empty args.
- *
- * @param {!Object<string, goog.uri.utils.QueryValue>} map An object where keys
- *     are URI-encoded parameter keys, and the values are arbitrary types
- *     or arrays. Keys with a null value are dropped.
- * @return {string} The encoded query string, in the form 'a=1&b=2'.
- */
-goog.uri.utils.buildQueryDataFromMap = function(map) {
-  var params = [];
-  for (var key in map) {
-    goog.uri.utils.appendKeyValuePairs_(key, map[key], params);
-  }
-  return params.join('&');
-};
-
-
-/**
- * Appends URI parameters to an existing URI.
- *
- * The variable arguments may contain alternating keys and values.  Keys are
- * assumed to be already URI encoded.  The values should not be URI-encoded,
- * and will instead be encoded by this function.
- * <pre>
- * appendParams('http://www.foo.com?existing=true',
- *     'key1', 'value1',
- *     'key2', 'value?willBeEncoded',
- *     'key3', ['valueA', 'valueB', 'valueC'],
- *     'key4', null);
- * result: 'http://www.foo.com?existing=true&' +
- *     'key1=value1&' +
- *     'key2=value%3FwillBeEncoded&' +
- *     'key3=valueA&key3=valueB&key3=valueC'
- * </pre>
- *
- * A single call to this function will not exhibit quadratic behavior in IE,
- * whereas multiple repeated calls may, although the effect is limited by
- * fact that URL's generally can't exceed 2kb.
- *
- * @param {string} uri The original URI, which may already have query data.
- * @param {...(goog.uri.utils.QueryArray|goog.uri.utils.QueryValue)}
- * var_args
- *     An array or argument list conforming to goog.uri.utils.QueryArray.
- * @return {string} The URI with all query parameters added.
- */
-goog.uri.utils.appendParams = function(uri, var_args) {
-  var queryData = arguments.length == 2 ?
-      goog.uri.utils.buildQueryData(arguments[1], 0) :
-      goog.uri.utils.buildQueryData(arguments, 1);
-  return goog.uri.utils.appendQueryDataToUri_(uri, queryData);
-};
-
-
-/**
- * Appends query parameters from a map.
- *
- * @param {string} uri The original URI, which may already have query data.
- * @param {!Object<goog.uri.utils.QueryValue>} map An object where keys are
- *     URI-encoded parameter keys, and the values are arbitrary types or arrays.
- *     Keys with a null value are dropped.
- * @return {string} The new parameters.
- */
-goog.uri.utils.appendParamsFromMap = function(uri, map) {
-  var queryData = goog.uri.utils.buildQueryDataFromMap(map);
-  return goog.uri.utils.appendQueryDataToUri_(uri, queryData);
-};
-
-
-/**
- * Appends a single URI parameter.
- *
- * Repeated calls to this can exhibit quadratic behavior in IE6 due to the
- * way string append works, though it should be limited given the 2kb limit.
- *
- * @param {string} uri The original URI, which may already have query data.
- * @param {string} key The key, which must already be URI encoded.
- * @param {*=} opt_value The value, which will be stringized and encoded
- *     (assumed not already to be encoded).  If omitted, undefined, or null, the
- *     key will be added as a valueless parameter.
- * @return {string} The URI with the query parameter added.
- */
-goog.uri.utils.appendParam = function(uri, key, opt_value) {
-  var value = goog.isDefAndNotNull(opt_value) ?
-      '=' + goog.string.urlEncode(opt_value) :
-      '';
-  return goog.uri.utils.appendQueryDataToUri_(uri, key + value);
-};
-
-
-/**
- * Finds the next instance of a query parameter with the specified name.
- *
- * Does not instantiate any objects.
- *
- * @param {string} uri The URI to search.  May contain a fragment identifier
- *     if opt_hashIndex is specified.
- * @param {number} startIndex The index to begin searching for the key at.  A
- *     match may be found even if this is one character after the ampersand.
- * @param {string} keyEncoded The URI-encoded key.
- * @param {number} hashOrEndIndex Index to stop looking at.  If a hash
- *     mark is present, it should be its index, otherwise it should be the
- *     length of the string.
- * @return {number} The position of the first character in the key's name,
- *     immediately after either a question mark or a dot.
- * @private
- */
-goog.uri.utils.findParam_ = function(
-    uri, startIndex, keyEncoded, hashOrEndIndex) {
-  var index = startIndex;
-  var keyLength = keyEncoded.length;
-
-  // Search for the key itself and post-filter for surronuding punctuation,
-  // rather than expensively building a regexp.
-  while ((index = uri.indexOf(keyEncoded, index)) >= 0 &&
-         index < hashOrEndIndex) {
-    var precedingChar = uri.charCodeAt(index - 1);
-    // Ensure that the preceding character is '&' or '?'.
-    if (precedingChar == goog.uri.utils.CharCode_.AMPERSAND ||
-        precedingChar == goog.uri.utils.CharCode_.QUESTION) {
-      // Ensure the following character is '&', '=', '#', or NaN
-      // (end of string).
-      var followingChar = uri.charCodeAt(index + keyLength);
-      if (!followingChar || followingChar == goog.uri.utils.CharCode_.EQUAL ||
-          followingChar == goog.uri.utils.CharCode_.AMPERSAND ||
-          followingChar == goog.uri.utils.CharCode_.HASH) {
-        return index;
-      }
-    }
-    index += keyLength + 1;
-  }
-
-  return -1;
-};
-
-
-/**
- * Regular expression for finding a hash mark or end of string.
- * @type {RegExp}
- * @private
- */
-goog.uri.utils.hashOrEndRe_ = /#|$/;
-
-
-/**
- * Determines if the URI contains a specific key.
- *
- * Performs no object instantiations.
- *
- * @param {string} uri The URI to process.  May contain a fragment
- *     identifier.
- * @param {string} keyEncoded The URI-encoded key.  Case-sensitive.
- * @return {boolean} Whether the key is present.
- */
-goog.uri.utils.hasParam = function(uri, keyEncoded) {
-  return goog.uri.utils.findParam_(
-             uri, 0, keyEncoded, uri.search(goog.uri.utils.hashOrEndRe_)) >= 0;
-};
-
-
-/**
- * Gets the first value of a query parameter.
- * @param {string} uri The URI to process.  May contain a fragment.
- * @param {string} keyEncoded The URI-encoded key.  Case-sensitive.
- * @return {?string} The first value of the parameter (URI-decoded), or null
- *     if the parameter is not found.
- */
-goog.uri.utils.getParamValue = function(uri, keyEncoded) {
-  var hashOrEndIndex = uri.search(goog.uri.utils.hashOrEndRe_);
-  var foundIndex =
-      goog.uri.utils.findParam_(uri, 0, keyEncoded, hashOrEndIndex);
-
-  if (foundIndex < 0) {
-    return null;
-  } else {
-    var endPosition = uri.indexOf('&', foundIndex);
-    if (endPosition < 0 || endPosition > hashOrEndIndex) {
-      endPosition = hashOrEndIndex;
-    }
-    // Progress forth to the end of the "key=" or "key&" substring.
-    foundIndex += keyEncoded.length + 1;
-    // Use substr, because it (unlike substring) will return empty string
-    // if foundIndex > endPosition.
-    return goog.string.urlDecode(
-        uri.substr(foundIndex, endPosition - foundIndex));
-  }
-};
-
-
-/**
- * Gets all values of a query parameter.
- * @param {string} uri The URI to process.  May contain a fragment.
- * @param {string} keyEncoded The URI-encoded key.  Case-sensitive.
- * @return {!Array<string>} All URI-decoded values with the given key.
- *     If the key is not found, this will have length 0, but never be null.
- */
-goog.uri.utils.getParamValues = function(uri, keyEncoded) {
-  var hashOrEndIndex = uri.search(goog.uri.utils.hashOrEndRe_);
-  var position = 0;
-  var foundIndex;
-  var result = [];
-
-  while ((foundIndex = goog.uri.utils.findParam_(
-              uri, position, keyEncoded, hashOrEndIndex)) >= 0) {
-    // Find where this parameter ends, either the '&' or the end of the
-    // query parameters.
-    position = uri.indexOf('&', foundIndex);
-    if (position < 0 || position > hashOrEndIndex) {
-      position = hashOrEndIndex;
-    }
-
-    // Progress forth to the end of the "key=" or "key&" substring.
-    foundIndex += keyEncoded.length + 1;
-    // Use substr, because it (unlike substring) will return empty string
-    // if foundIndex > position.
-    result.push(
-        goog.string.urlDecode(uri.substr(foundIndex, position - foundIndex)));
-  }
-
-  return result;
-};
-
-
-/**
- * Regexp to find trailing question marks and ampersands.
- * @type {RegExp}
- * @private
- */
-goog.uri.utils.trailingQueryPunctuationRe_ = /[?&]($|#)/;
-
-
-/**
- * Removes all instances of a query parameter.
- * @param {string} uri The URI to process.  Must not contain a fragment.
- * @param {string} keyEncoded The URI-encoded key.
- * @return {string} The URI with all instances of the parameter removed.
- */
-goog.uri.utils.removeParam = function(uri, keyEncoded) {
-  var hashOrEndIndex = uri.search(goog.uri.utils.hashOrEndRe_);
-  var position = 0;
-  var foundIndex;
-  var buffer = [];
-
-  // Look for a query parameter.
-  while ((foundIndex = goog.uri.utils.findParam_(
-              uri, position, keyEncoded, hashOrEndIndex)) >= 0) {
-    // Get the portion of the query string up to, but not including, the ?
-    // or & starting the parameter.
-    buffer.push(uri.substring(position, foundIndex));
-    // Progress to immediately after the '&'.  If not found, go to the end.
-    // Avoid including the hash mark.
-    position = Math.min(
-        (uri.indexOf('&', foundIndex) + 1) || hashOrEndIndex, hashOrEndIndex);
-  }
-
-  // Append everything that is remaining.
-  buffer.push(uri.substr(position));
-
-  // Join the buffer, and remove trailing punctuation that remains.
-  return buffer.join('').replace(
-      goog.uri.utils.trailingQueryPunctuationRe_, '$1');
-};
-
-
-/**
- * Replaces all existing definitions of a parameter with a single definition.
- *
- * Repeated calls to this can exhibit quadratic behavior due to the need to
- * find existing instances and reconstruct the string, though it should be
- * limited given the 2kb limit.  Consider using appendParams or setParamsFromMap
- * to update multiple parameters in bulk.
- *
- * @param {string} uri The original URI, which may already have query data.
- * @param {string} keyEncoded The key, which must already be URI encoded.
- * @param {*} value The value, which will be stringized and encoded (assumed
- *     not already to be encoded).
- * @return {string} The URI with the query parameter added.
- */
-goog.uri.utils.setParam = function(uri, keyEncoded, value) {
-  return goog.uri.utils.appendParam(
-      goog.uri.utils.removeParam(uri, keyEncoded), keyEncoded, value);
-};
-
-
-/**
- * Effeciently set or remove multiple query parameters in a URI. Order of
- * unchanged parameters will not be modified, all updated parameters will be
- * appended to the end of the query. Params with values of null or undefined are
- * removed.
- *
- * @param {string} uri The URI to process.
- * @param {!Object<string, goog.uri.utils.QueryValue>} params A list of
- *     parameters to update. If null or undefined, the param will be removed.
- * @return {string} An updated URI where the query data has been updated with
- *     the params.
- */
-goog.uri.utils.setParamsFromMap = function(uri, params) {
-  var parts = goog.uri.utils.splitQueryData_(uri);
-  var queryData = parts[1];
-  var buffer = [];
-  if (queryData) {
-    goog.array.forEach(queryData.split('&'), function(pair) {
-      var indexOfEquals = pair.indexOf('=');
-      var name = indexOfEquals >= 0 ? pair.substr(0, indexOfEquals) : pair;
-      if (!params.hasOwnProperty(name)) {
-        buffer.push(pair);
-      }
-    });
-  }
-  parts[1] = goog.uri.utils.appendQueryData_(
-      buffer.join('&'), goog.uri.utils.buildQueryDataFromMap(params));
-  return goog.uri.utils.joinQueryData_(parts);
-};
-
-
-/**
- * Generates a URI path using a given URI and a path with checks to
- * prevent consecutive "//". The baseUri passed in must not contain
- * query or fragment identifiers. The path to append may not contain query or
- * fragment identifiers.
- *
- * @param {string} baseUri URI to use as the base.
- * @param {string} path Path to append.
- * @return {string} Updated URI.
- */
-goog.uri.utils.appendPath = function(baseUri, path) {
-  goog.uri.utils.assertNoFragmentsOrQueries_(baseUri);
-
-  // Remove any trailing '/'
-  if (goog.string.endsWith(baseUri, '/')) {
-    baseUri = baseUri.substr(0, baseUri.length - 1);
-  }
-  // Remove any leading '/'
-  if (goog.string.startsWith(path, '/')) {
-    path = path.substr(1);
-  }
-  return goog.string.buildString(baseUri, '/', path);
-};
-
-
-/**
- * Replaces the path.
- * @param {string} uri URI to use as the base.
- * @param {string} path New path.
- * @return {string} Updated URI.
- */
-goog.uri.utils.setPath = function(uri, path) {
-  // Add any missing '/'.
-  if (!goog.string.startsWith(path, '/')) {
-    path = '/' + path;
-  }
-  var parts = goog.uri.utils.split(uri);
-  return goog.uri.utils.buildFromEncodedParts(
-      parts[goog.uri.utils.ComponentIndex.SCHEME],
-      parts[goog.uri.utils.ComponentIndex.USER_INFO],
-      parts[goog.uri.utils.ComponentIndex.DOMAIN],
-      parts[goog.uri.utils.ComponentIndex.PORT], path,
-      parts[goog.uri.utils.ComponentIndex.QUERY_DATA],
-      parts[goog.uri.utils.ComponentIndex.FRAGMENT]);
-};
-
-
-/**
- * Standard supported query parameters.
- * @enum {string}
- */
-goog.uri.utils.StandardQueryParam = {
-
-  /** Unused parameter for unique-ifying. */
-  RANDOM: 'zx'
-};
-
-
-/**
- * Sets the zx parameter of a URI to a random value.
- * @param {string} uri Any URI.
- * @return {string} That URI with the "zx" parameter added or replaced to
- *     contain a random string.
- */
-goog.uri.utils.makeUnique = function(uri) {
-  return goog.uri.utils.setParam(
-      uri, goog.uri.utils.StandardQueryParam.RANDOM,
-      goog.string.getRandomString());
-};