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

media/audio/audio_output_proxy_unittest.cc

Index: media/audio/audio_output_proxy_unittest.cc
diff --git a/media/audio/audio_output_proxy_unittest.cc b/media/audio/audio_output_proxy_unittest.cc
index 6f8befb74a1fe7dafaf396d19afae895c09d53c1..71c2ad90229011016b4d9f840058156c353bea3c 100644
--- a/media/audio/audio_output_proxy_unittest.cc
+++ b/media/audio/audio_output_proxy_unittest.cc
@@ -124,7 +124,9 @@ class MockAudioManager : public AudioManagerBase {
 
 class MockAudioSourceCallback : public AudioOutputStream::AudioSourceCallback {
  public:
-  int OnMoreData(AudioBus* audio_bus, uint32 total_bytes_delay) {
+  int OnMoreData(AudioBus* audio_bus,
+                 uint32_t total_bytes_delay,
+                 uint32_t frames_skipped) {
     audio_bus->Zero();
     return audio_bus->frames();
   }