Ping watchdog thread during GpuChannel destruction

gpu/gles2_conform_support/egl/context.h

 // 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.
 
 #ifndef GPU_GLES2_CONFORM_TEST_CONTEXT_H_
 #define GPU_GLES2_CONFORM_TEST_CONTEXT_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "gpu/command_buffer/client/gles2_cmd_helper.h"
 #include "gpu/command_buffer/client/gpu_control.h"
 #include "gpu/command_buffer/service/command_buffer_service.h"
 #include "gpu/command_buffer/service/command_executor.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.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 "ui/gfx/native_widget_types.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gl_surface.h"
 #include <EGL/egl.h>
 
 namespace gpu {
 class TransferBuffer;
@@ skipping 76 matching lines @@
   const Config* config_;
   bool is_current_in_some_thread_;
   bool is_destroyed_;
   gpu::GpuPreferences gpu_preferences_;
   const gpu::GpuDriverBugWorkarounds gpu_driver_bug_workarounds_;
   std::unique_ptr<gpu::CommandBufferService> command_buffer_;
   std::unique_ptr<gpu::gles2::GLES2CmdHelper> gles2_cmd_helper_;
   std::unique_ptr<gpu::gles2::GLES2Decoder> decoder_;
   std::unique_ptr<gpu::CommandExecutor> command_executor_;
   std::unique_ptr<gpu::TransferBuffer> transfer_buffer_;
+  gpu::gles2::ProgressReporterStub progress_reporter_;
 
   scoped_refptr<gl::GLContext> gl_context_;
 
   std::unique_ptr<gpu::gles2::GLES2Interface> client_gl_context_;
   DISALLOW_COPY_AND_ASSIGN(Context);
 };
 
 }  // namespace egl
 
 #endif  // GPU_GLES2_CONFORM_TEST_CONTEXT_H_