Forward the number of skipped frames by the OS in audio playout.

media/audio/audio_io.h

Index: media/audio/audio_io.h
diff --git a/media/audio/audio_io.h b/media/audio/audio_io.h
index 56392154e3229a062a77fd8b1d9ba12090558bca..76cb652eee7563f0a183352f7d00f6f975b5de2d 100644
--- a/media/audio/audio_io.h
+++ b/media/audio/audio_io.h
@@ -63,6 +63,12 @@ class MEDIA_EXPORT AudioOutputStream {
     // number of bytes of delay buffered by the AudioOutputStream.
     virtual int OnMoreData(AudioBus* dest, uint32 total_bytes_delay) = 0;
 
+    // Informs that the consumer has skipped |frames_skipped| frames. The source

[DaleCurtis, 2015/12/01 18:12:46]

Why a new method instead of rolling this into OnMoreData() ?

[Henrik Grunell, 2015/12/03 17:01:06]

(See previous comment exchange.) Put this in OnMoreData().

+    // can handle this appropriately depending on the type of source. An
+    // ordinary file playout would ignore this.
+    // TODO BEFORE COMMIT: Pure virtual and update subclasses.
+    virtual void OnSkippedData(uint32_t frames_skipped){};
+
     // There was an error while playing a buffer. Audio source cannot be
     // destroyed yet. No direct action needed by the AudioStream, but it is
     // a good place to stop accumulating sound data since is is likely that