Add OVERRIDE to media/.

media/audio/test_audio_input_controller_factory.h

Index: media/audio/test_audio_input_controller_factory.h
diff --git a/media/audio/test_audio_input_controller_factory.h b/media/audio/test_audio_input_controller_factory.h
index 97b7201e742d71069da479658d105a7d7b9265a2..7b178c4197e491a8c7d053670612c9b232de00d6 100644
--- a/media/audio/test_audio_input_controller_factory.h
+++ b/media/audio/test_audio_input_controller_factory.h
@@ -54,8 +54,8 @@ class TestAudioInputController : public AudioInputController {
 
   // Overriden to do nothing. It is assumed the caller will notify the event
   // handler with recorded data and other events.
-  virtual void Record() {}
-  virtual void Close() {}
+  virtual void Record() OVERRIDE {}
+  virtual void Close() OVERRIDE {}
 
  private:
   // These are not owned by us and expected to be valid for this object's
@@ -75,7 +75,7 @@ class TestAudioInputControllerFactory : public AudioInputController::Factory {
   // AudioInputController::Factory methods.
   virtual AudioInputController* Create(
       AudioInputController::EventHandler* event_handler,
-      AudioParameters params);
+      AudioParameters params) OVERRIDE;
 
   TestAudioInputController* controller() const { return controller_; }