Ignore updates to app list Most Likely apps when animating off the start page.

ui/app_list/views/app_list_view_unittest.cc

 // Copyright 2014 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.
 
 #include "ui/app_list/views/app_list_view.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 455 matching lines @@
     // apps grid view.
     SimulateClick(all_apps_button);
     main_view->contents_view()->Layout();
     EXPECT_TRUE(IsStateShown(AppListModel::STATE_APPS));
 
     // Hiding and showing the search box should not affect the app list's
     // preferred size. This is a regression test for http://crbug.com/386912.
     EXPECT_EQ(view_size.ToString(), view_->GetPreferredSize().ToString());
 
     // Check tiles hide and show on deletion and addition.
+    EXPECT_TRUE(SetAppListState(AppListModel::STATE_START));
     model->results()->Add(new TestStartPageSearchResult());
     start_page_view->UpdateForTesting();
     EXPECT_EQ(1u, GetVisibleViews(start_page_view->tile_views()));
     model->results()->DeleteAll();
     start_page_view->UpdateForTesting();
     EXPECT_EQ(0u, GetVisibleViews(start_page_view->tile_views()));
   } else {
     EXPECT_EQ(NULL, start_page_view);
   }
 
@@ skipping 342 matching lines @@
                         AppListViewTestAura,
                         ::testing::Range<int>(TEST_TYPE_START, TEST_TYPE_END));
 #endif
 
 INSTANTIATE_TEST_CASE_P(AppListViewTestDesktopInstance,
                         AppListViewTestDesktop,
                         ::testing::Range<int>(TEST_TYPE_START, TEST_TYPE_END));
 
 }  // namespace test
 }  // namespace app_list