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

content/browser/gpu/browser_gpu_channel_host_factory.cc

 // 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.
 
 #include "content/browser/gpu/browser_gpu_channel_host_factory.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/profiler/scoped_tracker.h"
@@ skipping 295 matching lines @@
   host->CreateViewCommandBuffer(
       surface,
       surface_id,
       gpu_client_id_,
       init_params,
       request->route_id,
       base::Bind(&BrowserGpuChannelHostFactory::CommandBufferCreatedOnIO,
                  request));
 }
 
-IPC::AttachmentBroker* BrowserGpuChannelHostFactory::GetAttachmentBroker() {
-  return content::ChildProcessHost::GetAttachmentBroker();
-}
-
 // static
 void BrowserGpuChannelHostFactory::CommandBufferCreatedOnIO(
     CreateRequest* request, CreateCommandBufferResult result) {
   request->result = result;
   request->event.Signal();
 }
 
 CreateCommandBufferResult BrowserGpuChannelHostFactory::CreateViewCommandBuffer(
       int32 surface_id,
       const GPUCreateCommandBufferConfig& init_params,
@@ skipping 110 matching lines @@
 }
 
 // static
 void BrowserGpuChannelHostFactory::InitializeShaderDiskCacheOnIO(
     int gpu_client_id,
     const base::FilePath& cache_dir) {
   ShaderCacheFactory::GetInstance()->SetCacheInfo(gpu_client_id, cache_dir);
 }
 
 }  // namespace content