Use WebKit compositor in ui::Layer

ui/aura_shell/examples/aura_shell_main.cc

 // Copyright (c) 2011 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 "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/i18n/icu_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "ui/aura/desktop.h"
 #include "ui/aura_shell/examples/toplevel_window.h"
 #include "ui/aura_shell/launcher/launcher_types.h"
 #include "ui/aura_shell/shell.h"
 #include "ui/aura_shell/shell_delegate.h"
 #include "ui/aura_shell/shell_factory.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
+#include "ui/gfx/compositor/compositor_test_support.h"
 
 namespace {
 
 class ShellDelegateImpl : public aura_shell::ShellDelegate {
  public:
   ShellDelegateImpl() {
   }
 
   virtual void CreateNewWindow() OVERRIDE {
     aura_shell::examples::ToplevelWindow::CreateParams create_params;
@@ skipping 34 matching lines @@
 
   // The exit manager is in charge of calling the dtors of singleton objects.
   base::AtExitManager exit_manager;
 
   ui::RegisterPathProvider();
   icu_util::Initialize();
   ResourceBundle::InitSharedInstance("en-US");
 
   // Create the message-loop here before creating the desktop.
   MessageLoop message_loop(MessageLoop::TYPE_UI);
+  ui::CompositorTestSupport::Initialize();
 
   aura_shell::Shell::GetInstance()->SetDelegate(new ShellDelegateImpl);;
 
   aura_shell::examples::InitWindowTypeLauncher();
 
   aura::Desktop::GetInstance()->Run();
 
   delete aura::Desktop::GetInstance();
 
+  ui::CompositorTestSupport::Terminate();
+
   return 0;
 }