Revert 277794 "Modifies AudioInputCallback::OnData and use media..."

trunk/src/media/audio/pulse/pulse_output.h

Index: trunk/src/media/audio/pulse/pulse_output.h
===================================================================
--- trunk/src/media/audio/pulse/pulse_output.h	(revision 277811)
+++ trunk/src/media/audio/pulse/pulse_output.h	(working copy)
@@ -23,7 +23,6 @@
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
-#include "base/threading/thread_checker.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_parameters.h"
 
@@ -91,8 +90,6 @@
   // Container for retrieving data from AudioSourceCallback::OnMoreData().
   scoped_ptr<AudioBus> audio_bus_;
 
-  base::ThreadChecker thread_checker_;
-
   DISALLOW_COPY_AND_ASSIGN(PulseAudioOutputStream);
 };