MD History: Display synced tabs history.

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

Index: chrome/test/data/webui/md_history/md_history_browsertest.js
diff --git a/chrome/test/data/webui/md_history/md_history_browsertest.js b/chrome/test/data/webui/md_history/md_history_browsertest.js
index 8999a3776d42431da984efe7088ad184afae45a9..10e823817c39c95d1eefed8e35a048eb0e5a0578 100644
--- a/chrome/test/data/webui/md_history/md_history_browsertest.js
+++ b/chrome/test/data/webui/md_history/md_history_browsertest.js
@@ -31,6 +31,7 @@ MaterialHistoryBrowserTest.prototype = {
     'history_item_test.js',
     'history_overflow_menu_test.js',
     'history_supervised_user_test.js',
+    'history_synced_tabs_test.js',
     'history_toolbar_test.js'
   ])
 };
@@ -55,6 +56,11 @@ TEST_F('MaterialHistoryBrowserTest', 'HistoryOverflowMenuTest', function() {
   mocha.run();
 });
 
+TEST_F('MaterialHistoryBrowserTest', 'SyncedTabsTest', function() {
+  md_history.history_synced_tabs_test.registerTests();
+  mocha.run();
+});
+
 function MaterialHistoryDeletionDisabledTest() {}
 
 MaterialHistoryDeletionDisabledTest.prototype = {