ipc: Use a global for the process's attachment broker.

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>
 
 #include "base/atomic_sequence_num.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/process/process.h"
 #include "base/synchronization/lock.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/common/gpu/gpu_result_codes.h"
 #include "content/common/message_router.h"
 #include "gpu/config/gpu_info.h"
-#include "ipc/attachment_broker.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_sync_channel.h"
 #include "ipc/message_filter.h"
 #include "media/video/jpeg_decode_accelerator.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gl/gpu_preference.h"
 
@@ skipping 17 matching lines @@
 }
 
 namespace gpu {
 class GpuMemoryBufferManager;
 }
 
 namespace content {
 class CommandBufferProxyImpl;
 class GpuChannelHost;
 
-class CONTENT_EXPORT GpuChannelHostFactory
-    : virtual public IPC::SupportsAttachmentBrokering {
+class CONTENT_EXPORT GpuChannelHostFactory {
  public:
   virtual ~GpuChannelHostFactory() {}
 
   virtual bool IsMainThread() = 0;
   virtual scoped_refptr<base::SingleThreadTaskRunner>
   GetIOThreadTaskRunner() = 0;
   virtual scoped_ptr<base::SharedMemory> AllocateSharedMemory(size_t size) = 0;
   virtual CreateCommandBufferResult CreateViewCommandBuffer(
       int32 surface_id,
       const GPUCreateCommandBufferConfig& init_params,
@@ skipping 205 matching lines @@
   mutable base::Lock context_lock_;
   scoped_ptr<IPC::SyncChannel> channel_;
   base::hash_map<int32, StreamFlushInfo> stream_flush_info_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_GPU_CHANNEL_HOST_H_