Enable implicit signalling for HE AAC v1 & v2 in ADTS.

media/renderers/audio_renderer_impl.h

Index: media/renderers/audio_renderer_impl.h
diff --git a/media/renderers/audio_renderer_impl.h b/media/renderers/audio_renderer_impl.h
index 1db9bd340c55337a103f0a2eb2498ca56e7f0625..8db17cd0f9bbcf35b1d747d1d484d08a06fd8436 100644
--- a/media/renderers/audio_renderer_impl.h
+++ b/media/renderers/audio_renderer_impl.h
@@ -232,6 +232,10 @@ class MEDIA_EXPORT AudioRendererImpl
   // HandleSplicerBuffer_Locked() call.
   int64_t last_audio_memory_usage_;
 
+  // Sample rate of the last decoded audio buffer. Allows for detection of
+  // sample rate changes due to implicit AAC configuration change.
+  int32_t last_decoded_sample_rate_;

[DaleCurtis, 2016/03/18 00:16:23]

Just int

[chcunningham, 2016/03/25 01:41:16]

Done.

+
   // After Initialize() has completed, all variables below must be accessed
   // under |lock_|. ------------------------------------------------------------
   base::Lock lock_;