Removes tracking for fake audio streams.

media/audio/audio_manager_base.cc

Index: media/audio/audio_manager_base.cc
diff --git a/media/audio/audio_manager_base.cc b/media/audio/audio_manager_base.cc
index 944156c66c6f8e9eb1e561ea1896b01a9c05a083..ed0af0c5532493f5b1b7048731bd9c7dc613d655 100644
--- a/media/audio/audio_manager_base.cc
+++ b/media/audio/audio_manager_base.cc
@@ -137,14 +137,17 @@ AudioOutputStream* AudioManagerBase::MakeAudioOutputStream(
       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_;
   }
 
@@ -182,14 +185,17 @@ AudioInputStream* AudioManagerBase::MakeAudioInputStream(
       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_;
   }