chrome/browser: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/media/desktop_media_list_ash_unittest.cc

 // Copyright 2013 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 "chrome/browser/media/desktop_media_list_ash.h"
 
 #include "ash/test/ash_test_base.h"
+#include "base/location.h"
 #include "base/message_loop/message_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/media/desktop_media_list_observer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/window.h"
 
 int kThumbnailSize = 100;
 
 using testing::AtLeast;
 using testing::DoDefault;
 
@@ skipping 19 matching lines @@
     list_->SetUpdatePeriod(base::TimeDelta::FromMilliseconds(1));
   }
 
  protected:
   MockDesktopMediaListObserver observer_;
   scoped_ptr<DesktopMediaListAsh> list_;
   DISALLOW_COPY_AND_ASSIGN(DesktopMediaListAshTest);
 };
 
 ACTION(QuitMessageLoop) {
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::MessageLoop::QuitClosure());
 }
 
 TEST_F(DesktopMediaListAshTest, Screen) {
   CreateList(DesktopMediaListAsh::SCREENS | DesktopMediaListAsh::WINDOWS);
 
   EXPECT_CALL(observer_, OnSourceAdded(0));
   EXPECT_CALL(observer_, OnSourceThumbnailChanged(0))
       .WillOnce(QuitMessageLoop())
       .WillRepeatedly(DoDefault());
@@ skipping 46 matching lines @@
       .WillOnce(QuitMessageLoop())
       .WillRepeatedly(DoDefault());
   EXPECT_CALL(observer_, OnSourceRemoved(0))
       .WillOnce(QuitMessageLoop());
 
   list_->StartUpdating(&observer_);
   base::MessageLoop::current()->Run();
   window.reset();
   base::MessageLoop::current()->Run();
 }