Added volume adjust sound behind the flag.

media/audio/sounds/test_data.h

Index: media/audio/sounds/test_data.h
diff --git a/media/audio/sounds/test_data.h b/media/audio/sounds/test_data.h
index d7fb11ddb6b837602aad95f5ed03b12d88692990..777abf13b402709d0c49e5585ad1f592afb7c3cb 100644
--- a/media/audio/sounds/test_data.h
+++ b/media/audio/sounds/test_data.h
@@ -29,9 +29,11 @@ class TestObserver : public AudioStreamHandler::TestObserver {
 
   // AudioStreamHandler::TestObserver implementation:
   virtual void OnPlay() OVERRIDE;
+  virtual void OnReplay() OVERRIDE;
   virtual void OnStop(size_t cursor) OVERRIDE;
 
   int num_play_requests() const { return num_play_requests_; }
+  int num_replays() const { return num_replays_; }
   int num_stop_requests() const { return num_stop_requests_; }
   int cursor() const { return cursor_; }
 
@@ -40,6 +42,7 @@ class TestObserver : public AudioStreamHandler::TestObserver {
   base::Closure quit_;
 
   int num_play_requests_;
+  int num_replays_;
   int num_stop_requests_;
   int cursor_;