Remove unused parameter to OnError()

media/audio/audio_output_controller.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_controller.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/message_loop.h"
 #include "base/threading/platform_thread.h"
@@ skipping 101 matching lines @@
   if (state_ == kClosed)
     return;
 
   DoStopCloseAndClearStream();  // Calls RemoveOutputDeviceChangeListener().
   DCHECK_EQ(kEmpty, state_);
 
   stream_ = diverting_to_stream_ ? diverting_to_stream_ :
       audio_manager_->MakeAudioOutputStreamProxy(params_);
   if (!stream_) {
     state_ = kError;
-
-    // TODO(hclam): Define error types.
-    handler_->OnError(0);
+    handler_->OnError();
     return;
   }
 
   if (!stream_->Open()) {
     DoStopCloseAndClearStream();
     state_ = kError;
-
-    // TODO(hclam): Define error types.
-    handler_->OnError(0);
+    handler_->OnError();
     return;
   }
 
   // Everything started okay, so re-register for state change callbacks if
   // stream_ was created via AudioManager.
   if (stream_ != diverting_to_stream_)
     audio_manager_->AddOutputDeviceChangeListener(this);
 
   // We have successfully opened the stream. Set the initial volume.
   stream_->SetVolume(volume_);
@@ skipping 127 matching lines @@
     case kStarting:
     case kPlaying:
     case kPaused:
       stream_->SetVolume(volume_);
       break;
     default:
       return;
   }
 }
 
-void AudioOutputController::DoReportError(int code) {
+void AudioOutputController::DoReportError() {
   DCHECK(message_loop_->BelongsToCurrentThread());
   if (state_ != kClosed)
-    handler_->OnError(code);
+    handler_->OnError();
 }
 
 int AudioOutputController::OnMoreData(AudioBus* dest,
                                       AudioBuffersState buffers_state) {
   return OnMoreIOData(NULL, dest, buffers_state);
 }
 
 int AudioOutputController::OnMoreIOData(AudioBus* source,
                                         AudioBus* dest,
                                         AudioBuffersState buffers_state) {
@@ skipping 26 matching lines @@
   // Wait for up to 683ms for DataReady().  683ms was chosen because it's larger
   // than the playback time of the WaveOut buffer size using the minimum
   // supported sample rate: 2048 / 3000 = ~683ms.
   const base::TimeDelta kMaxWait = base::TimeDelta::FromMilliseconds(683);
   while (!sync_reader_->DataReady() &&
          ((base::Time::Now() - start) < kMaxWait)) {
     base::PlatformThread::YieldCurrentThread();
   }
 }
 
-void AudioOutputController::OnError(AudioOutputStream* stream, int code) {
+void AudioOutputController::OnError(AudioOutputStream* stream) {
   // Handle error on the audio controller thread.
   message_loop_->PostTask(FROM_HERE, base::Bind(
-      &AudioOutputController::DoReportError, this, code));
+      &AudioOutputController::DoReportError, this));
 }
 
 void AudioOutputController::DoStopCloseAndClearStream() {
   DCHECK(message_loop_->BelongsToCurrentThread());
 
   // Allow calling unconditionally and bail if we don't have a stream_ to close.
   if (stream_) {
     // De-register from state change callbacks if stream_ was created via
     // AudioManager.
     if (stream_ != diverting_to_stream_)
@@ skipping 84 matching lines @@
   DCHECK(base::AtomicRefCountIsZero(&num_allowed_io_));
   base::AtomicRefCountInc(&num_allowed_io_);
 }
 
 void AudioOutputController::DisallowEntryToOnMoreIOData() {
   const bool is_zero = !base::AtomicRefCountDec(&num_allowed_io_);
   DCHECK(is_zero);
 }
 
 }  // namespace media