[Media Router] Custom Controls 4 - Implement details view WebUI

chrome/test/data/webui/media_router/media_router_container_search_tests.js

Index: chrome/test/data/webui/media_router/media_router_container_search_tests.js
diff --git a/chrome/test/data/webui/media_router/media_router_container_search_tests.js b/chrome/test/data/webui/media_router/media_router_container_search_tests.js
index 53b4d50a625e2bf77dd41763a21582989039d1e5..58d32269469a8ccd8d873e3f38799f93c687241c 100644
--- a/chrome/test/data/webui/media_router/media_router_container_search_tests.js
+++ b/chrome/test/data/webui/media_router/media_router_container_search_tests.js
@@ -119,6 +119,27 @@ cr.define('media_router_container_search', function() {
        */
       var foundSink = null;
 
+      // Mock the browser API.
+      var overrideBrowserApi = function() {

[mark a. foltz, 2017/05/12 00:02:47]

Can this be moved into the common setup code?

[takumif, 2017/05/15 17:13:12]

Done. Figured out that HTMLElement#dispatchEvent does something similar to
Polymer.Base#fire.

+        cr.define('media_router.browserApi', function() {
+          'use strict';
+
+          function onMediaControllerClosed() {
+            container.fire('mock-media-controller-closed');
+          }
+
+          function onMediaControllerAvailable(routeId) {
+            container.fire('mock-media-controller-available',
+                           {routeId: routeId});
+          }
+
+          return {
+            onMediaControllerClosed: onMediaControllerClosed,
+            onMediaControllerAvailable: onMediaControllerAvailable,
+          };
+        });
+      }
+
       /**
        * Example pseudo sink.
        * @type {media_router.Sink}
@@ -137,6 +158,7 @@ cr.define('media_router_container_search', function() {
         // Initialize a media-router-container before each test.
         container = document.createElement('media-router-container');
         document.body.appendChild(container);
+        overrideBrowserApi(container);
 
         // Get common functions and variables.
         var test_base = media_router_container_test_base.init(container);