Use correct thread for audio capturing and encoding.

remoting/host/desktop_environment_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 "remoting/host/desktop_environment_factory.h"
 
 #include "remoting/host/audio_capturer.h"
 #include "remoting/host/chromoting_host_context.h"
 #include "remoting/host/client_session.h"
 #include "remoting/host/desktop_environment.h"
 #include "remoting/host/event_executor.h"
 #include "remoting/host/video_frame_capturer.h"
 
 namespace remoting {
 
 DesktopEnvironmentFactory::DesktopEnvironmentFactory(
     scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner)
     : input_task_runner_(input_task_runner),
       ui_task_runner_(ui_task_runner) {
 }
 
 DesktopEnvironmentFactory::~DesktopEnvironmentFactory() {
 }
 
 scoped_ptr<DesktopEnvironment> DesktopEnvironmentFactory::Create(
     ClientSession* client) {
-  scoped_ptr<AudioCapturer> audio_capturer = AudioCapturer::Create();
   scoped_ptr<EventExecutor> event_executor = EventExecutor::Create(
       input_task_runner_, ui_task_runner_);
   scoped_ptr<VideoFrameCapturer> video_capturer(VideoFrameCapturer::Create());
   return scoped_ptr<DesktopEnvironment>(new DesktopEnvironment(
-      audio_capturer.Pass(), event_executor.Pass(), video_capturer.Pass()));
+      event_executor.Pass(), video_capturer.Pass()));
 }
 
 bool DesktopEnvironmentFactory::SupportsAudioCapture() const {
   return AudioCapturer::IsSupported();
 }
 
 }  // namespace remoting