Move chrome\gpu to content\gpu.

chrome/gpu/gpu_watchdog_thread.h

-// Copyright (c) 2010 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 CHROME_GPU_GPU_WATCHDOG_THREAD_H_
-#define CHROME_GPU_GPU_WATCHDOG_THREAD_H_
-
-#include "base/message_loop.h"
-#include "base/ref_counted.h"
-#include "base/scoped_ptr.h"
-#include "base/task.h"
-#include "base/threading/thread.h"
-#include "base/time.h"
-
-// A thread that intermitently sends tasks to a group of watched message loops
-// and deliberately crashes if one of them does not respond after a timeout.
-class GpuWatchdogThread : public base::Thread,
-                          public base::RefCountedThreadSafe<GpuWatchdogThread> {
- public:
-  explicit GpuWatchdogThread(int timeout);
-  virtual ~GpuWatchdogThread();
-
-  // Accessible on watched thread but only modified by watchdog thread.
-  bool armed() const { return armed_; }
-  void PostAcknowledge();
-
- protected:
-  virtual void Init();
-  virtual void CleanUp();
-
- private:
-
-  // An object of this type intercepts the reception and completion of all tasks
-  // on the watched thread and checks whether the watchdog is armed.
-  class GpuWatchdogTaskObserver : public MessageLoop::TaskObserver {
-   public:
-    explicit GpuWatchdogTaskObserver(GpuWatchdogThread* watchdog);
-    virtual ~GpuWatchdogTaskObserver();
-
-    // Implements MessageLoop::TaskObserver.
-    virtual void WillProcessTask(const Task* task);
-    virtual void DidProcessTask(const Task* task);
-
-   private:
-    void CheckArmed();
-    GpuWatchdogThread* watchdog_;
-  };
-
-  void OnAcknowledge();
-  void OnCheck();
-  void DeliberatelyCrashingToRecoverFromHang();
-  void Disable();
-
-  int64 GetWatchedThreadTime();
-
-  MessageLoop* watched_message_loop_;
-  int timeout_;
-  volatile bool armed_;
-  GpuWatchdogTaskObserver task_observer_;
-
-#if defined(OS_WIN)
-  void* watched_thread_handle_;
-  int64 arm_cpu_time_;
-#endif
-
-  base::Time arm_absolute_time_;
-
-  typedef ScopedRunnableMethodFactory<GpuWatchdogThread> MethodFactory;
-  scoped_ptr<MethodFactory> method_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuWatchdogThread);
-};
-
-#endif  // CHROME_GPU_GPU_WATCHDOG_THREAD_H_