Remove unused parameter to OnError()

media/audio/audio_output_proxy.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_output_proxy.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/audio_output_dispatcher.h"
@@ skipping 27 matching lines @@
 void AudioOutputProxy::Start(AudioSourceCallback* callback) {
   DCHECK(CalledOnValidThread());
 
   // We need to support both states since the callback may not handle OnError()
   // immediately (or at all).  It's also possible for subsequent StartStream()
   // calls to succeed after failing, so we allow it to be called again.
   DCHECK(state_ == kOpened || state_ == kStartError);
 
   if (!dispatcher_->StartStream(callback, this)) {
     state_ = kStartError;
-    callback->OnError(this, 0);
+    callback->OnError(this);
     return;
   }
   state_ = kPlaying;
 }
 
 void AudioOutputProxy::Stop() {
   DCHECK(CalledOnValidThread());
   if (state_ != kPlaying)
     return;
 
@@ skipping 25 matching lines @@
   state_ = kClosed;
 
   // Delete the object now like is done in the Close() implementation of
   // physical stream objects.  If we delete the object via DeleteSoon, we
   // unnecessarily complicate the Shutdown procedure of the
   // dispatcher+audio manager.
   delete this;
 }
 
 }  // namespace media