MD History: Display synced tabs history.

chrome/browser/resources/md_history/side_bar.js

Index: chrome/browser/resources/md_history/side_bar.js
diff --git a/chrome/test/data/extensions/api_test/service_worker/background/page.js b/chrome/browser/resources/md_history/side_bar.js
similarity index 54%
copy from chrome/test/data/extensions/api_test/service_worker/background/page.js
copy to chrome/browser/resources/md_history/side_bar.js
index 7bd53d9b3bdbb8cd1ff5cae9b4baa9a7b2742133..201b2b6537d2b2901f0cfa51ee59725fdab04553 100644
--- a/chrome/test/data/extensions/api_test/service_worker/background/page.js
+++ b/chrome/browser/resources/md_history/side_bar.js
@@ -2,6 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-chrome.runtime.sendMessage({sourceCheck: true}, function(e) {
-  chrome.test.sendMessage(e.label);
+Polymer({
+  is: 'history-side-bar',
+
+  onSelect: function(e, details) {

[tsergeant, 2016/03/10 06:02:52]

Nit: Make this private

[calamity, 2016/03/14 02:29:39]

Done.

+    this.fire('switch-display', { display: details.item.id });
+  },
+
 });