Revert 238325 "Attempt to fix audio wedges by restarting all str..."

trunk/src/media/audio/audio_manager_base.cc

Index: trunk/src/media/audio/audio_manager_base.cc
===================================================================
--- trunk/src/media/audio/audio_manager_base.cc	(revision 238326)
+++ trunk/src/media/audio/audio_manager_base.cc	(working copy)
@@ -418,32 +418,4 @@
   return 0;
 }
 
-void AudioManagerBase::FixWedgedAudio() {
-  DCHECK(message_loop_->BelongsToCurrentThread());
-#if defined(OS_MACOSX)
-  // Through trial and error, we've found that one way to restore audio after a
-  // hang is to close all outstanding audio streams.  Once all streams have been
-  // closed, new streams appear to work correctly.
-  //
-  // In Chrome terms, this means we need to ask all AudioOutputDispatchers to
-  // close all Open()'d streams.  Once all streams across all dispatchers have
-  // been closed, we ask for all previously Start()'d streams to be recreated
-  // using the same AudioSourceCallback they had before.
-  //
-  // Since this operation takes place on the audio thread we can be sure that no
-  // other state-changing stream operations will take place while the fix is in
-  // progress.
-  //
-  // See http://crbug.com/160920 for additional details.
-  for (AudioOutputDispatchers::iterator it = output_dispatchers_.begin();
-       it != output_dispatchers_.end(); ++it) {
-    (*it)->dispatcher->CloseStreamsForWedgeFix();
-  }
-  for (AudioOutputDispatchers::iterator it = output_dispatchers_.begin();
-       it != output_dispatchers_.end(); ++it) {
-    (*it)->dispatcher->RestartStreamsForWedgeFix();
-  }
-#endif
-}
-
 }  // namespace media