Sixth patch in getting rid of caching MessageLoop pointers. Audio and automa...

chrome/browser/renderer_host/browser_render_process_host.cc

 // Copyright (c) 2009 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 
 #include "build/build_config.h"
@@ skipping 235 matching lines @@
 bool BrowserRenderProcessHost::Init(bool is_extensions_process) {
   // calling Init() more than once does nothing, this makes it more convenient
   // for the view host which may not be sure in some cases
   if (channel_.get())
     return true;
 
   // run the IPC channel on the shared IO thread.
   base::Thread* io_thread = g_browser_process->io_thread();
 
   // Construct the AudioRendererHost with the IO thread.
-  audio_renderer_host_ =
-      new AudioRendererHost(io_thread->message_loop());
+  audio_renderer_host_ = new AudioRendererHost();
 
   scoped_refptr<ResourceMessageFilter> resource_message_filter =
       new ResourceMessageFilter(g_browser_process->resource_dispatcher_host(),
                                 id(),
                                 audio_renderer_host_.get(),
                                 PluginService::GetInstance(),
                                 g_browser_process->print_job_manager(),
                                 profile(),
                                 widget_helper_,
                                 profile()->GetSpellChecker());
@@ skipping 766 matching lines @@
     profile()->GetExtensionMessageService()->RemoveEventListener(
         event_name, id());
   }
 }
 
 void BrowserRenderProcessHost::OnExtensionCloseChannel(int port_id) {
   if (profile()->GetExtensionMessageService()) {
     profile()->GetExtensionMessageService()->CloseChannel(port_id);
   }
 }