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diff --git a/src/http/static/viz/2/goog/labs/useragent/platform.js b/src/http/static/viz/2/goog/labs/useragent/platform.js
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+// 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 Closure user agent platform detection.
+ * @see <a href="http://www.useragentstring.com/">User agent strings</a>
+ * For more information on browser brand, rendering engine, or device see the
+ * other sub-namespaces in goog.labs.userAgent (browser, engine, and device
+ * respectively).
+ *
+ */
+
+goog.provide('goog.labs.userAgent.platform');
+
+goog.require('goog.labs.userAgent.util');
+goog.require('goog.string');
+
+
+/**
+ * @return {boolean} Whether the platform is Android.
+ */
+goog.labs.userAgent.platform.isAndroid = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Android');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iPod.
+ */
+goog.labs.userAgent.platform.isIpod = function() {
+  return goog.labs.userAgent.util.matchUserAgent('iPod');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iPhone.
+ */
+goog.labs.userAgent.platform.isIphone = function() {
+  return goog.labs.userAgent.util.matchUserAgent('iPhone') &&
+      !goog.labs.userAgent.util.matchUserAgent('iPod') &&
+      !goog.labs.userAgent.util.matchUserAgent('iPad');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iPad.
+ */
+goog.labs.userAgent.platform.isIpad = function() {
+  return goog.labs.userAgent.util.matchUserAgent('iPad');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is iOS.
+ */
+goog.labs.userAgent.platform.isIos = function() {
+  return goog.labs.userAgent.platform.isIphone() ||
+      goog.labs.userAgent.platform.isIpad() ||
+      goog.labs.userAgent.platform.isIpod();
+};
+
+
+/**
+ * @return {boolean} Whether the platform is Mac.
+ */
+goog.labs.userAgent.platform.isMacintosh = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Macintosh');
+};
+
+
+/**
+ * Note: ChromeOS is not considered to be Linux as it does not report itself
+ * as Linux in the user agent string.
+ * @return {boolean} Whether the platform is Linux.
+ */
+goog.labs.userAgent.platform.isLinux = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Linux');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is Windows.
+ */
+goog.labs.userAgent.platform.isWindows = function() {
+  return goog.labs.userAgent.util.matchUserAgent('Windows');
+};
+
+
+/**
+ * @return {boolean} Whether the platform is ChromeOS.
+ */
+goog.labs.userAgent.platform.isChromeOS = function() {
+  return goog.labs.userAgent.util.matchUserAgent('CrOS');
+};
+
+
+/**
+ * The version of the platform. We only determine the version for Windows,
+ * Mac, and Chrome OS. It doesn't make much sense on Linux. For Windows, we only
+ * look at the NT version. Non-NT-based versions (e.g. 95, 98, etc.) are given
+ * version 0.0.
+ *
+ * @return {string} The platform version or empty string if version cannot be
+ *     determined.
+ */
+goog.labs.userAgent.platform.getVersion = function() {
+  var userAgentString = goog.labs.userAgent.util.getUserAgent();
+  var version = '', re;
+  if (goog.labs.userAgent.platform.isWindows()) {
+    re = /Windows (?:NT|Phone) ([0-9.]+)/;
+    var match = re.exec(userAgentString);
+    if (match) {
+      version = match[1];
+    } else {
+      version = '0.0';
+    }
+  } else if (goog.labs.userAgent.platform.isIos()) {
+    re = /(?:iPhone|iPod|iPad|CPU)\s+OS\s+(\S+)/;
+    var match = re.exec(userAgentString);
+    // Report the version as x.y.z and not x_y_z
+    version = match && match[1].replace(/_/g, '.');
+  } else if (goog.labs.userAgent.platform.isMacintosh()) {
+    re = /Mac OS X ([0-9_.]+)/;
+    var match = re.exec(userAgentString);
+    // Note: some old versions of Camino do not report an OSX version.
+    // Default to 10.
+    version = match ? match[1].replace(/_/g, '.') : '10';
+  } else if (goog.labs.userAgent.platform.isAndroid()) {
+    re = /Android\s+([^\);]+)(\)|;)/;
+    var match = re.exec(userAgentString);
+    version = match && match[1];
+  } else if (goog.labs.userAgent.platform.isChromeOS()) {
+    re = /(?:CrOS\s+(?:i686|x86_64)\s+([0-9.]+))/;
+    var match = re.exec(userAgentString);
+    version = match && match[1];
+  }
+  return version || '';
+};
+
+
+/**
+ * @param {string|number} version The version to check.
+ * @return {boolean} Whether the browser version is higher or the same as the
+ *     given version.
+ */
+goog.labs.userAgent.platform.isVersionOrHigher = function(version) {
+  return goog.string.compareVersions(
+             goog.labs.userAgent.platform.getVersion(), version) >= 0;
+};