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

content/plugin/plugin_thread.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/plugin/plugin_thread.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_MACOSX)
 #include <CoreFoundation/CoreFoundation.h>
@@ skipping 120 matching lines @@
     IPC_MESSAGE_HANDLER(PluginProcessMsg_NotifyRenderersOfPendingShutdown,
                         OnNotifyRenderersOfPendingShutdown)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void PluginThread::OnCreateChannel(int renderer_id,
                                    bool incognito) {
   scoped_refptr<PluginChannel> channel(PluginChannel::GetPluginChannel(
-      renderer_id, ChildProcess::current()->io_task_runner(),
-      GetAttachmentBroker()));
+      renderer_id, ChildProcess::current()->io_task_runner()));
   IPC::ChannelHandle channel_handle;
   if (channel.get()) {
     channel_handle.name = channel->channel_handle().name;
 #if defined(OS_POSIX)
     // On POSIX, pass the renderer-side FD.
     channel_handle.socket =
         base::FileDescriptor(channel->TakeRendererFileDescriptor());
 #endif
     channel->set_incognito(incognito);
   }
 
   Send(new PluginProcessHostMsg_ChannelCreated(channel_handle));
 }
 
 void PluginThread::OnNotifyRenderersOfPendingShutdown() {
   PluginChannel::NotifyRenderersOfPendingShutdown();
 }
 
 }  // namespace content