(Relanding) Restores larger output buffer size when output stream requiring smaller size is closed

media/audio/mac/audio_auhal_mac.cc

Index: media/audio/mac/audio_auhal_mac.cc
diff --git a/media/audio/mac/audio_auhal_mac.cc b/media/audio/mac/audio_auhal_mac.cc
index d71673fd12ae517dd61f0fdedabda64d2e7e4077..42cd16d88a6df4ab30b226655ba3b2ea008ef58c 100644
--- a/media/audio/mac/audio_auhal_mac.cc
+++ b/media/audio/mac/audio_auhal_mac.cc
@@ -123,8 +123,10 @@ void AUHALStream::Close() {
   DVLOG(1) << "Close";
   CloseAudioUnit();
   // Inform the audio manager that we have been closed. This will cause our
-  // destruction.
-  manager_->ReleaseOutputStream(this);
+  // destruction. Also include the device ID as a signal to the audio manager
+  // that it should try to increase the native I/O buffer size after the stream
+  // has been closed.
+  manager_->ReleaseOutputStreamUsingRealDevice(this, device_);
 }
 
 void AUHALStream::Start(AudioSourceCallback* callback) {
@@ -175,6 +177,7 @@ void AUHALStream::Stop() {
   if (stopped_)
     return;
   DVLOG(1) << "Stop";
+  DVLOG(2) << "number_of_frames: " << number_of_frames_;
   OSStatus result = AudioOutputUnitStop(audio_unit_);
   OSSTATUS_DLOG_IF(ERROR, result != noErr, result)
       << "AudioOutputUnitStop() failed.";
@@ -218,8 +221,7 @@ OSStatus AUHALStream::Render(
       // changes reflected in UMA stats.
       number_of_frames_requested_ = number_of_frames;
       DVLOG(1) << "Audio frame size changed from " << number_of_frames_
-               << " to " << number_of_frames
-               << "; adding FIFO to compensate.";
+               << " to " << number_of_frames << " adding FIFO to compensate.";
       audio_fifo_.reset(new AudioPullFifo(
           output_channels_,
           number_of_frames_,