Add P2 UMA metrics for Media Router user actions.

chrome/browser/resources/media_router/media_router_ui_interface.js

 // Copyright 2015 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.
 
 // API invoked by the browser MediaRouterWebUIMessageHandler to communicate
 // with this UI.
 cr.define('media_router.ui', function() {
   'use strict';
 
   // The media-router-container element.
@@ skipping 119 matching lines @@
   function closeDialog() {
     chrome.send('closeDialog');
   }
 
   /**
    * Closes the given route.
    *
    * @param {!media_router.Route} route
    */
   function closeRoute(route) {
-    chrome.send('closeRoute', [{routeId: route.id}]);
+    chrome.send('closeRoute', [{routeId: route.id, isLocal: route.isLocal}]);
   }
 
   /**
    * Indicates that the initial data has been received.
    */
   function onInitialDataReceived() {
     chrome.send('onInitialDataReceived');
   }
 
   /**
+   * Reports the index of the selected sink.
+   *
+   * @param {number} sinkIndex
+   */
+  function reportClickedSinkIndex(sinkIndex) {
+    chrome.send('reportClickedSinkIndex', [sinkIndex]);
+  }
+
+  /**
+   * Reports the cast mode that the user selected.
+   *
+   * @param {number} castModeType
+   */
+  function reportSelectedCastMode(castModeType) {
+    chrome.send('reportSelectedCastMode', [castModeType]);
+  }
+
+  /**
    * Reports the current number of sinks.
    *
    * @param {number} sinkCount
    */
   function reportSinkCount(sinkCount) {
     chrome.send('reportSinkCount', [sinkCount]);
   }
 
   /**
    * Requests data to initialize the WebUI with.
@@ skipping 13 matching lines @@
   function requestRoute(sinkId, selectedCastMode) {
     chrome.send('requestRoute',
                 [{sinkId: sinkId, selectedCastMode: selectedCastMode}]);
   }
 
   return {
     actOnIssue: actOnIssue,
     closeDialog: closeDialog,
     closeRoute: closeRoute,
     onInitialDataReceived: onInitialDataReceived,
+    reportClickedSinkIndex: reportClickedSinkIndex,
+    reportSelectedCastMode: reportSelectedCastMode,
     reportSinkCount: reportSinkCount,
     requestInitialData: requestInitialData,
     requestRoute: requestRoute,
   };
 });