Add UMA stats for Chromoting connection details.

remoting/webapp/js_proto/chrome_mocks.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file contains various mock objects for the chrome platform to make
 // unit testing easier.
 
 var chromeMocks = {};
 
 (function(){
@@ skipping 228 matching lines @@
   this.token_ = token;
 };
 
 chromeMocks.Identity.prototype.mock$clearToken = function() {
   this.token_ = undefined;
 };
 
 /** @type {chromeMocks.Identity} */
 chromeMocks.identity;
 
+/** @constructor */
+chromeMocks.MetricsPrivate = function() {
+};
+
+chromeMocks.MetricsPrivate.prototype.recordValue = function() {
+};
+
+/** @type {chromeMocks.MetricsPrivate} */
+chromeMocks.metricsPrivate;
 
 /** @constructor */
 chromeMocks.I18n = function() {};
 
 /**
  * @param {string} messageName
  * @param {(string|Array<string>)=} opt_args
  * @return {string}
  */
 chromeMocks.I18n.prototype.getMessage = function(messageName, opt_args) {};
@@ skipping 22 matching lines @@
  */
 chromeMocks.activate = function() {
   if (originals_) {
     throw new Error('chromeMocks.activate() can only be called once.');
   }
   originals_ = {};
   nativePorts = {};
 
   chromeMocks.i18n = new chromeMocks.I18n();
   chromeMocks.identity = new chromeMocks.Identity();
+  chromeMocks.metricsPrivate = new chromeMocks.MetricsPrivate();
 
-  ['identity', 'i18n', 'runtime', 'storage'].forEach(
+  ['identity', 'i18n', 'runtime', 'storage', 'metricsPrivate'].forEach(
     function(/** string */ component) {
       if (!chromeMocks[component]) {
         throw new Error('No mocks defined for chrome.' + component);
       }
       originals_[component] = chrome[component];
       chrome[component] = chromeMocks[component];
     });
 
   chrome.app['window'] = new chromeMocks.WindowManager();
 };
 
 chromeMocks.restore = function() {
   if (!originals_) {
     throw new Error('You must call activate() before restore().');
   }
   for (var components in originals_) {
     chrome[components] = originals_[components];
   }
   originals_ = null;
   nativePorts = null;
 };
 
 })();