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

content/common/gpu/client/gpu_channel_host.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/common/gpu/client/gpu_channel_host.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 51 matching lines @@
   next_stream_id_.GetNext();
 }
 
 void GpuChannelHost::Connect(const IPC::ChannelHandle& channel_handle,
                              base::WaitableEvent* shutdown_event) {
   DCHECK(factory_->IsMainThread());
   // Open a channel to the GPU process. We pass NULL as the main listener here
   // since we need to filter everything to route it to the right thread.
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner =
       factory_->GetIOThreadTaskRunner();
-  channel_ = IPC::SyncChannel::Create(
-      channel_handle, IPC::Channel::MODE_CLIENT, NULL, io_task_runner.get(),
-      true, shutdown_event, factory_->GetAttachmentBroker());
+  channel_ =
+      IPC::SyncChannel::Create(channel_handle, IPC::Channel::MODE_CLIENT, NULL,
+                               io_task_runner.get(), true, shutdown_event);
 
   sync_filter_ = channel_->CreateSyncMessageFilter();
 
   channel_filter_ = new MessageFilter();
 
   // Install the filter last, because we intercept all leftover
   // messages.
   channel_->AddFilter(channel_filter_.get());
 }
 
@@ skipping 360 matching lines @@
 
   listeners_.clear();
 }
 
 bool GpuChannelHost::MessageFilter::IsLost() const {
   AutoLock lock(lock_);
   return lost_;
 }
 
 }  // namespace content