[MD History] Refactor history.html into a history-app element.

chrome/test/data/webui/md_history/history_synced_tabs_test.js

Index: chrome/test/data/webui/md_history/history_synced_tabs_test.js
diff --git a/chrome/test/data/webui/md_history/history_synced_tabs_test.js b/chrome/test/data/webui/md_history/history_synced_tabs_test.js
index dc2f6d182c365d3419a50fbf40cd35f1ebea970e..794a60761adb027c64f219a323b34b5dd6d12ba5 100644
--- a/chrome/test/data/webui/md_history/history_synced_tabs_test.js
+++ b/chrome/test/data/webui/md_history/history_synced_tabs_test.js
@@ -28,18 +28,20 @@ cr.define('md_history.history_synced_tabs_test', function() {
 
   function registerTests() {
     suite('synced-tabs', function() {
+      var app;
       var element;
       var sidebarElement;
 
       suiteSetup(function() {
-        element = $('history-synced-device-manager');
-        sidebarElement = $('history-side-bar');
+        app = $('history-app');
+        element = app.$['history-synced-device-manager'];
+        sidebarElement = app.$['history-side-bar'];
       });
 
       test('sidebar displayed', function() {
-        setForeignSessions([], false);
+        app.setForeignSessions([], false);
         assertTrue(sidebarElement.hidden);
-        setForeignSessions([], true);
+        app.setForeignSessions([], true);
         assertFalse(sidebarElement.hidden);
       });
 
@@ -50,7 +52,7 @@ cr.define('md_history.history_synced_tabs_test', function() {
               [createWindow(['http://www.google.com', 'http://example.com'])]
           )
         ];
-        setForeignSessions(sessionList, true);
+        app.setForeignSessions(sessionList, true);
 
         flush(function() {
           var card = element.$$('history-synced-device-card');
@@ -73,7 +75,7 @@ cr.define('md_history.history_synced_tabs_test', function() {
               ]
           ),
         ];
-        setForeignSessions(sessionList, true);
+        app.setForeignSessions(sessionList, true);
 
         flush(function() {
           var cards = Polymer.dom(element.root)
@@ -102,7 +104,7 @@ cr.define('md_history.history_synced_tabs_test', function() {
         var session2 =
             createSession('Nexus 5', [createWindow(['http://www.google.com'])]);
 
-        setForeignSessions([session1, session2], true);
+        app.setForeignSessions([session1, session2], true);
 
         flush(function() {
           var session1updated = createSession('Chromebook', [
@@ -111,7 +113,7 @@ cr.define('md_history.history_synced_tabs_test', function() {
           ]);
           session1updated.timestamp = 1234;
 
-          setForeignSessions([session1updated, session2], true);
+          app.setForeignSessions([session1updated, session2], true);
 
           flush(function() {
             // There should only be two cards.