Move MessageLoop to base namespace.

ui/aura/test/aura_test_helper.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/aura/test/aura_test_helper.h"
 
 #include "base/message_loop.h"
 #include "base/run_loop.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/default_capture_client.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/focus_manager.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/test_activation_client.h"
 #include "ui/aura/test/test_screen.h"
 #include "ui/aura/test/test_stacking_client.h"
 #include "ui/base/test/dummy_input_method.h"
 #include "ui/compositor/layer_animator.h"
 #include "ui/compositor/scoped_animation_duration_scale_mode.h"
 #include "ui/gfx/screen.h"
 
 #if defined(USE_X11)
 #include "ui/base/x/x11_util.h"
 #endif
 
 namespace aura {
 namespace test {
 
-AuraTestHelper::AuraTestHelper(MessageLoopForUI* message_loop)
+AuraTestHelper::AuraTestHelper(base::MessageLoopForUI* message_loop)
     : setup_called_(false),
       teardown_called_(false),
       owns_root_window_(false) {
   DCHECK(message_loop);
   message_loop_ = message_loop;
   // Disable animations during tests.
   zero_duration_mode_.reset(new ui::ScopedAnimationDurationScaleMode(
       ui::ScopedAnimationDurationScaleMode::ZERO_DURATION));
 }
 
@@ skipping 49 matching lines @@
 #if !defined(OS_MACOSX)
   // TODO(jbates) crbug.com/134753 Find quitters of this RunLoop and have them
   //              use run_loop.QuitClosure().
   base::RunLoop run_loop(Env::GetInstance()->GetDispatcher());
   run_loop.RunUntilIdle();
 #endif
 }
 
 }  // namespace test
 }  // namespace aura