MD History: Add icon in top right of page when showing synced results

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

Index: chrome/test/data/webui/md_history/history_toolbar_test.js
diff --git a/chrome/test/data/webui/md_history/history_toolbar_test.js b/chrome/test/data/webui/md_history/history_toolbar_test.js
index 50b7265ee7e00dc017ddd536dbe1c42e8d790f4b..b16793c473b3c339c672eaad494969ba78c3f845 100644
--- a/chrome/test/data/webui/md_history/history_toolbar_test.js
+++ b/chrome/test/data/webui/md_history/history_toolbar_test.js
@@ -11,13 +11,17 @@ cr.define('md_history.history_toolbar_test', function() {
       var TEST_HISTORY_RESULTS;
 
       suiteSetup(function() {
-        app = $('history-app');
-        element = app.$['history'].$['infinite-list'];
-        toolbar = app.$['toolbar'];
         TEST_HISTORY_RESULTS =
             [createHistoryEntry('2016-03-15', 'https://google.com')];
       });
 
+      setup(function() {
+        app = replaceApp();
+        element = app.$['history'].$['infinite-list'];
+        toolbar = app.$['toolbar'];
+        return flush();
+      });
+
       test('selecting checkbox causes toolbar to change', function() {
         element.addNewResults(TEST_HISTORY_RESULTS);
 
@@ -90,10 +94,8 @@ cr.define('md_history.history_toolbar_test', function() {
       });
 
       teardown(function() {
-        element.historyData_ = [];
-        element.searchedTerm = '';
-        registerMessageCallback('queryHistory', this, undefined);
-        toolbar.count = 0;
+        registerMessageCallback('queryHistory', this, function() {});
+        app.set('queryState_.searchTerm', '');

[calamity, 2016/09/13 03:12:24]

Why is this set necessary?

[tsergeant, 2016/09/13 04:03:06]

When this test runs, the search term changes and so the URL changes to
chrome://history/?q=something. This URL doesn't get reset when the app is
replaced, and so it keeps the tests from being independent.

(This whole file does not -need- to be changed as part of this CL, it's just
cleanup I did while looking at it. I can come back and do it separately if you
prefer).

       });
     });
   }