[Media Router] Add cloud services preferences.

chrome/browser/resources/media_router/media_router.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.
 
 <include src="media_router_data.js">
 <include src="media_router_ui_interface.js">
 
 // Handles user events for the Media Router UI.
 cr.define('media_router', function() {
   'use strict';
@@ skipping 62 matching lines @@
   function onCastModeSelected(event) {
     /** @type {{castModeType: number}} */
     var detail = event.detail;
     media_router.browserApi.reportSelectedCastMode(detail.castModeType);
   }
 
   /**
    * Updates the preference that the user has seen the first run flow.
    * Called when the user clicks on the acknowledgement button on the first run
    * flow.
+   *
+   * @param {!Event} event
+   * Parameters in |event|.detail:
+   *   optedIntoCloudServices - whether or not the user opted into cloud
+   *                            services.
    */
-  function onAcknowledgeFirstRunFlow() {
-    media_router.browserApi.acknowledgeFirstRunFlow();
+  function onAcknowledgeFirstRunFlow(event) {
+    var detail = event.detail;
+    /** @type {{optedIntoCloudServices: boolean}} */

[imcheng, 2016/01/25 19:21:06]

move this line above "var detail = ..."

[apacible, 2016/01/26 01:12:56]

Done.

+    media_router.browserApi.acknowledgeFirstRunFlow(
+        detail.optedIntoCloudServices);
   }
 
   /**
    * Closes the dialog.
    * Called when the user clicks the close button on the dialog.
    */
   function onCloseDialogEvent() {
     container.maybeReportUserFirstAction(
         media_router.MediaRouterUserAction.CLOSE);
     media_router.browserApi.closeDialog();
@@ skipping 177 matching lines @@
     var detail = event.detail;
     media_router.browserApi.reportSinkCount(detail.sinkCount);
   }
 
   return {
     initialize: initialize,
   };
 });
 
 window.addEventListener('load', media_router.initialize);