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

content/browser/renderer_host/media/audio_sync_reader.cc

Index: content/browser/renderer_host/media/audio_sync_reader.cc
diff --git a/content/browser/renderer_host/media/audio_sync_reader.cc b/content/browser/renderer_host/media/audio_sync_reader.cc
index f6b3d6cef3f7db4a593402a2b355381fc8180f6a..8f2c67fd75724575d9671ee234297bc0796600b3 100644
--- a/content/browser/renderer_host/media/audio_sync_reader.cc
+++ b/content/browser/renderer_host/media/audio_sync_reader.cc
@@ -81,11 +81,13 @@ AudioSyncReader::~AudioSyncReader() {
 }
 
 // media::AudioOutputController::SyncReader implementations.
-void AudioSyncReader::UpdatePendingBytes(uint32 bytes) {
+void AudioSyncReader::UpdatePendingBytes(uint32_t bytes,
+                                         uint32_t frames_skipped) {
   // Zero out the entire output buffer to avoid stuttering/repeating-buffers
   // in the anomalous case if the renderer is unable to keep up with real-time.
   output_bus_->Zero();
-  socket_->Send(&bytes, sizeof(bytes));
+  uint64_t data = (static_cast<uint64_t>(bytes) << 32) | frames_skipped;

[tommi (sloooow) - chröme, 2015/12/01 13:34:25]

can we use a struct with two uint32_t's instead?

+  socket_->Send(&data, sizeof(data));
   ++buffer_index_;
 }