Extending audio rendering traces on Mac with rebuffering info.

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 928831076378a158f6baf0ad8c55c09f29062cac..889a82289e4f27b04425940a755fc80a1175f188 100644
--- a/media/audio/mac/audio_auhal_mac.cc
+++ b/media/audio/mac/audio_auhal_mac.cc
@@ -211,7 +211,8 @@ OSStatus AUHALStream::Render(
     UInt32 bus_number,
     UInt32 number_of_frames,
     AudioBufferList* data) {
-  TRACE_EVENT0("audio", "AUHALStream::Render");
+  TRACE_EVENT2("audio", "AUHALStream::Render", "render buffer size",

[o1ka, 2016/08/24 10:02:43]

I'm bad at naming, as usual. Probably it's better to call it opposite? (Now
requested - the one which comes from the platform, and render - the one we are
asked to render at)

[Henrik Grunell, 2016/08/24 11:27:57]

Yeah, I thought it was the other way around, that requested is what the client
wanted to render at. Maybe call it in and out as with the converter?

+               number_of_frames_, "requested buffer size", number_of_frames);
 
   UpdatePlayoutTimestamp(output_time_stamp);