Removes tracking for fake audio streams.

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/macros.h"
@@ skipping 119 matching lines @@
   switch (params.format()) {
     case AudioParameters::AUDIO_PCM_LINEAR:
       DCHECK(AudioDeviceDescription::IsDefaultDevice(device_id))
           << "AUDIO_PCM_LINEAR supports only the default device.";
       stream = MakeLinearOutputStream(params, log_callback);
       break;
     case AudioParameters::AUDIO_PCM_LOW_LATENCY:
       stream = MakeLowLatencyOutputStream(params, device_id, log_callback);
       break;
     case AudioParameters::AUDIO_FAKE:
-      stream = FakeAudioOutputStream::MakeFakeStream(this, params);
+      stream = FakeAudioOutputStream::MakeFakeStream(
+          GetTaskRunner(), GetWorkerTaskRunner(), params);
       break;
     default:
       stream = NULL;
       break;
   }
 
-  if (stream) {
+  // Only count real physical streams. Fake streams do not hold reference to
+  // AudioManager and they do not need to be released.
+  if (stream && params.format() != AudioParameters::AUDIO_FAKE) {
     ++num_output_streams_;
   }
 
   return stream;
 }
 
 AudioInputStream* AudioManagerBase::MakeAudioInputStream(
     const AudioParameters& params,
     const std::string& device_id,
     const LogCallback& log_callback) {
@@ skipping 17 matching lines @@
 
   AudioInputStream* stream;
   switch (params.format()) {
     case AudioParameters::AUDIO_PCM_LINEAR:
       stream = MakeLinearInputStream(params, device_id, log_callback);
       break;
     case AudioParameters::AUDIO_PCM_LOW_LATENCY:
       stream = MakeLowLatencyInputStream(params, device_id, log_callback);
       break;
     case AudioParameters::AUDIO_FAKE:
-      stream = FakeAudioInputStream::MakeFakeStream(this, params);
+      stream = FakeAudioInputStream::MakeFakeStream(
+          GetTaskRunner(), GetWorkerTaskRunner(), params);
       break;
     default:
       stream = NULL;
       break;
   }
 
-  if (stream) {
+  // Only count real physical streams. Fake streams do not hold reference to
+  // AudioManager and they do not need to be released.
+  if (stream && params.format() != AudioParameters::AUDIO_FAKE) {
     ++num_input_streams_;
   }
 
   return stream;
 }
 
 AudioOutputStream* AudioManagerBase::MakeAudioOutputStreamProxy(
     const AudioParameters& params,
     const std::string& device_id) {
   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
@@ skipping 179 matching lines @@
 
   return 0;
 }
 
 std::unique_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
     AudioLogFactory::AudioComponent component) {
   return audio_log_factory_->CreateAudioLog(component);
 }
 
 }  // namespace media