Use a direct include of the message_loop header in ui/, part 1.

ui/app_list/views/apps_grid_view_unittest.cc

 // Copyright (c) 2012 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/apps_grid_view.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/timer/timer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/app_list/app_list_item_model.h"
 #include "ui/app_list/app_list_model.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/app_list/test/app_list_test_model.h"
 #include "ui/app_list/views/app_list_item_view.h"
 #include "ui/app_list/views/test/apps_grid_view_test_api.h"
 
 namespace app_list {
@@ skipping 400 matching lines @@
   // After page switch, arrow keys select first item on current page.
   apps_grid_view_->SetSelectedView(GetItemViewAt(first_index));
   pagination_model_->SelectPage(1, false);
   SimulateKeyPress(ui::VKEY_UP);
   EXPECT_TRUE(apps_grid_view_->IsSelectedView(GetItemViewAt(
       first_index_on_page2)));
 }
 
 }  // namespace test
 }  // namespace app_list