Fix UiThreadGpu initialization for video accelerator tests

ui/ozone/public/ui_thread_gpu.h

-// 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.
-
-#ifndef UI_OZONE_PUBLIC_UI_THREAD_GPU_H_
-#define UI_OZONE_PUBLIC_UI_THREAD_GPU_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "ui/ozone/ozone_export.h"
-
-namespace base {
-class Thread;
-}
-
-namespace ui {
-
-class FakeGpuProcess;
-class FakeGpuProcessHost;
-
-// Helper class for applications that do GL on the UI thead.
-//
-// This sets up message forwarding between the "gpu" and "ui" threads,
-// for applications in which they are both the same thread.
-class OZONE_EXPORT UiThreadGpu {
- public:
-  UiThreadGpu();
-  virtual ~UiThreadGpu();
-
-  // Start processing gpu messages.
-  bool Initialize();
-
- private:
-  scoped_ptr<FakeGpuProcess> fake_gpu_process_;
-  scoped_ptr<FakeGpuProcessHost> fake_gpu_process_host_;
-  scoped_ptr<base::Thread> io_helper_thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(UiThreadGpu);
-};
-
-}  // namespace ui
-
-#endif  // UI_OZONE_PUBLIC_UI_THREAD_GPU_H_