Pending tasks in a message loop should be deleted before shutting down Blink

content/common/gpu/client/gpu_channel_host.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 CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_
 #define CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 116 matching lines @@
   scoped_ptr<media::VideoDecodeAccelerator> CreateVideoDecoder(
       int command_buffer_route_id);
 
   // Creates a video encoder in the GPU process.
   scoped_ptr<media::VideoEncodeAccelerator> CreateVideoEncoder(
       int command_buffer_route_id);
 
   // Destroy a command buffer created by this channel.
   void DestroyCommandBuffer(CommandBufferProxyImpl* command_buffer);
 
+  // Destroy this channel.
+  void DestroyChannel();
+
   // Add a route for the current message loop.
   void AddRoute(int route_id, base::WeakPtr<IPC::Listener> listener);
   void RemoveRoute(int route_id);
 
   GpuChannelHostFactory* factory() const { return factory_; }
 
   // Returns a handle to the shared memory that can be sent via IPC to the
   // GPU process. The caller is responsible for ensuring it is closed. Returns
   // an invalid handle on failure.
   base::SharedMemoryHandle ShareToGpuProcess(
@@ skipping 91 matching lines @@
   // Used to look up a proxy from its routing id.
   typedef base::hash_map<int, CommandBufferProxyImpl*> ProxyMap;
   ProxyMap proxies_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_