Revert "Attempt to fix audio wedges by restarting all streams on OSX."

media/audio/audio_manager_base.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 "media/audio/audio_manager_base.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 394 matching lines @@
     return buffer_size;
 
   return 0;
 }
 
 scoped_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
     AudioLogFactory::AudioComponent component) {
   return audio_log_factory_->CreateAudioLog(component);
 }
 
-void AudioManagerBase::FixWedgedAudio() {
-  DCHECK(task_runner_->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