Use correct thread for audio capturing and encoding.

remoting/host/audio_scheduler.h

Index: remoting/host/audio_scheduler.h
diff --git a/remoting/host/audio_scheduler.h b/remoting/host/audio_scheduler.h
index 9ccc991e2590fd545506b59d2b07ba7730548f90..0a3e03b27a2731a8f7ee1ebd1482cdd175176111 100644
--- a/remoting/host/audio_scheduler.h
+++ b/remoting/host/audio_scheduler.h
@@ -22,6 +22,7 @@ class AudioStub;
 class AudioCapturer;
 class AudioEncoder;
 class AudioPacket;
+class DesktopEnvironment;
 
 // AudioScheduler is responsible for fetching audio data from the AudioCapturer
 // and encoding it before passing it to the AudioStub for delivery to the
@@ -36,7 +37,7 @@ class AudioScheduler : public base::RefCountedThreadSafe<AudioScheduler> {
   AudioScheduler(
       scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> network_task_runner,
-      AudioCapturer* audio_capturer,
+      DesktopEnvironment* desktop_environment,
       scoped_ptr<AudioEncoder> audio_encoder,
       protocol::AudioStub* audio_stub);
 
@@ -53,7 +54,7 @@ class AudioScheduler : public base::RefCountedThreadSafe<AudioScheduler> {
   virtual ~AudioScheduler();
 
   // Called on the audio thread to start capturing.
-  void StartOnAudioThread();
+  void StartOnAudioThread(DesktopEnvironment* desktop_environment);
 
   // Called on the audio thread to stop capturing.
   void StopOnAudioThread(const base::Closure& done_task);
@@ -67,7 +68,7 @@ class AudioScheduler : public base::RefCountedThreadSafe<AudioScheduler> {
   scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
 
-  AudioCapturer* audio_capturer_;
+  scoped_ptr<AudioCapturer> audio_capturer_;
 
   scoped_ptr<AudioEncoder> audio_encoder_;