Ping watchdog thread during GpuChannel destruction

gpu/command_buffer/service/in_process_command_buffer.h

Index: gpu/command_buffer/service/in_process_command_buffer.h
diff --git a/gpu/command_buffer/service/in_process_command_buffer.h b/gpu/command_buffer/service/in_process_command_buffer.h
index ad98b6eb7f479b722e5ba0cfb90b0a386fcc2c3e..c0332add50407c22f6d125b6ef74644cdcf18630 100644
--- a/gpu/command_buffer/service/in_process_command_buffer.h
+++ b/gpu/command_buffer/service/in_process_command_buffer.h
@@ -26,6 +26,7 @@
 #include "gpu/command_buffer/client/gpu_control.h"
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
+#include "gpu/command_buffer/service/progress_reporter_stub.h"
 #include "gpu/config/gpu_driver_bug_workarounds.h"
 #include "gpu/gpu_export.h"
 #include "ui/gfx/gpu_memory_buffer.h"
@@ -244,6 +245,9 @@ class GPU_EXPORT InProcessCommandBuffer : public CommandBuffer,
   // Used to throttle PerformDelayedWorkOnGpuThread.
   bool delayed_work_pending_;
   ImageFactory* image_factory_;
+  // There is no watchdog thread in in-process mode, so use the stub
+  // ProgressReporter.
+  gles2::ProgressReporterStub progress_reporter_;
 
   // Members accessed on the client thread:
   GpuControlClient* gpu_control_client_;