Minor cleanup to remove the static thread-safe methods on BrowserMainLoop. Initially I thought this…

content/browser/renderer_host/media/web_contents_audio_input_stream.cc

 // Copyright (c) 2013 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/renderer_host/media/web_contents_audio_input_stream.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
-#include "content/browser/browser_main_loop.h"
 #include "content/browser/renderer_host/media/audio_mirroring_manager.h"
 #include "content/browser/renderer_host/media/web_contents_capture_util.h"
 #include "content/browser/renderer_host/media/web_contents_tracker.h"
 #include "content/public/browser/browser_thread.h"
 #include "media/audio/virtual_audio_input_stream.h"
 #include "media/audio/virtual_audio_output_stream.h"
 
 namespace content {
 
 class WebContentsAudioInputStream::Impl
@@ skipping 249 matching lines @@
     } else {
       StartMirroring();
     }
   }
 }
 
 // static
 WebContentsAudioInputStream* WebContentsAudioInputStream::Create(
     const std::string& device_id,
     const media::AudioParameters& params,
-    const scoped_refptr<base::MessageLoopProxy>& message_loop) {
+    const scoped_refptr<base::MessageLoopProxy>& message_loop,
+    AudioMirroringManager* audio_mirroring_manager) {
   int render_process_id;
   int render_view_id;
   if (!WebContentsCaptureUtil::ExtractTabCaptureTarget(
           device_id, &render_process_id, &render_view_id)) {
     return NULL;
   }
 
   return new WebContentsAudioInputStream(
       render_process_id, render_view_id, message_loop,
-      BrowserMainLoop::GetAudioMirroringManager(),
+      audio_mirroring_manager,
       new WebContentsTracker(),
       new media::VirtualAudioInputStream(
           params, message_loop,
           media::VirtualAudioInputStream::AfterCloseCallback()));
 }
 
 WebContentsAudioInputStream::WebContentsAudioInputStream(
     int render_process_id, int render_view_id,
     const scoped_refptr<base::MessageLoopProxy>& message_loop,
     AudioMirroringManager* mirroring_manager,
@@ skipping 35 matching lines @@
 
 void WebContentsAudioInputStream::SetAutomaticGainControl(bool enabled) {
   impl_->mixer_stream()->SetAutomaticGainControl(enabled);
 }
 
 bool WebContentsAudioInputStream::GetAutomaticGainControl() {
   return impl_->mixer_stream()->GetAutomaticGainControl();
 }
 
 }  // namespace content