[MD History] Fix toolbar dates in grouped mode.

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('md_history.history_grouped_list_test', function() {
   function registerTests() {
     suite('history-grouped-list', function() {
       var app;
       var toolbar;
       var groupedList;
@@ skipping 62 matching lines @@
         assertEquals('history', sidebar.$.menu.selected);
 
         app.set('queryState_.range', HistoryRange.MONTH);
         assertEquals('grouped-list', content.selected);
         assertEquals('history', sidebar.$.menu.selected);
       });
 
       test('items grouped by domain', function() {
         app.set('queryState_.range', HistoryRange.WEEK);
         var info = createHistoryInfo();
-        info.queryStartTime = 'Yesterday';
-        info.queryEndTime = 'Now';
         app.historyResult(info, SIMPLE_RESULTS);
         return PolymerTest.flushTasks().then(function() {
           var data = groupedList.groupedHistoryData_;
           // 1 card for the day with 3 domains.
           assertEquals(1, data.length);
           assertEquals(3, data[0].domains.length);
 
           // Most visits at the top.
           assertEquals(2, data[0].domains[0].visits.length);
           assertEquals(1, data[0].domains[1].visits.length);
           assertEquals(1, data[0].domains[2].visits.length);
+        });
+      });
 
-          // Ensure the toolbar displays the correct begin and end time.
-          assertEquals('Yesterday', toolbar.queryStartTime);
-          assertEquals('Now', toolbar.queryEndTime);
-        });
+      test('toolbar dates appear in grouped mode', function() {
+        var getInfo = function() {
+          var info = createHistoryInfo();
+          info.queryStartMonth = 'Dec 2016';
+          info.queryInterval = 'Yesterday - Now';
+          return info;
+        };
+        app.set('queryState_.range', HistoryRange.MONTH);
+        app.historyResult(getInfo(), SIMPLE_RESULTS);
+        assertEquals(
+            'Dec 2016', toolbar.$$('#grouped-date').textContent.trim());
+
+        app.set('queryState_.range', HistoryRange.WEEK);
+        app.historyResult(getInfo(), SIMPLE_RESULTS);
+        assertEquals(
+            'Yesterday - Now', toolbar.$$('#grouped-date').textContent.trim());
       });
 
       test('items grouped by day in week view', function() {
         app.set('queryState_.range', HistoryRange.WEEK);
         app.historyResult(createHistoryInfo(), PER_DAY_RESULTS);
         return PolymerTest.flushTasks().then(function() {
           var data = groupedList.groupedHistoryData_;
 
           // 3 cards.
           assertEquals(3, data.length);
@@ skipping 194 matching lines @@
         assertEquals(
             JSON.stringify(expected),
             JSON.stringify(groupedList.buildRemovalTree_(paths)));
       });
     });
   }
   return {
     registerTests: registerTests
   };
 });