Ping watchdog thread during GpuChannel destruction

gpu/ipc/service/gpu_watchdog_thread.h

 // 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.
 
 #ifndef GPU_IPC_SERVICE_GPU_WATCHDOG_THREAD_H_
 #define GPU_IPC_SERVICE_GPU_WATCHDOG_THREAD_H_
 
 #include "base/atomicops.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/power_monitor/power_observer.h"
 #include "base/threading/thread.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
+#include "gpu/command_buffer/service/progress_reporter.h"
 #include "gpu/gpu_export.h"
 #include "ui/gfx/native_widget_types.h"
 
 #if defined(USE_X11)
 extern "C" {
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
 }
 #include <sys/poll.h>
 #include "ui/base/x/x11_util.h"  // nogncheck
 #include "ui/gfx/x/x11_types.h"  // nogncheck
 #endif                           // defined(USE_X11)
 
 namespace gpu {
 
 // 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 GPU_EXPORT GpuWatchdogThread
     : public base::Thread,
       public base::PowerObserver,
+      public gles2::ProgressReporter,
       public base::RefCountedThreadSafe<GpuWatchdogThread> {
  public:
   static scoped_refptr<GpuWatchdogThread> Create();
 
   void PostAcknowledge();
   void CheckArmed();
 
   // Must be called after a PowerMonitor has been created. Can be called from
   // any thread.
   void AddPowerObserver();
 
+  // gles2::ProgressReporter implementation:
+  void ReportProgress() override;
+
  protected:
   void Init() override;
   void CleanUp() override;
 
  private:
   friend class base::RefCountedThreadSafe<GpuWatchdogThread>;
 
   // 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 base::MessageLoop::TaskObserver {
@@ skipping 85 matching lines @@
 #endif
 
   base::WeakPtrFactory<GpuWatchdogThread> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuWatchdogThread);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_SERVICE_GPU_WATCHDOG_THREAD_H_