Adds volume level measurements to the AudioInputController for low-latency clients

media/audio/audio_input_controller_unittest.cc

Index: media/audio/audio_input_controller_unittest.cc
diff --git a/media/audio/audio_input_controller_unittest.cc b/media/audio/audio_input_controller_unittest.cc
index f1018359fc6dd379851a239375e94bea45efc13a..4e11e350fc8700c468ff437ba7d8b441a73b3a24 100644
--- a/media/audio/audio_input_controller_unittest.cc
+++ b/media/audio/audio_input_controller_unittest.cc
@@ -55,6 +55,9 @@ class MockAudioInputControllerEventHandler
                              AudioInputController::ErrorCode error_code));
   MOCK_METHOD3(OnData, void(AudioInputController* controller,
                             const uint8* data, uint32 size));
+  MOCK_METHOD2(OnLog,
+               void(AudioInputController* controller,
+                    const std::string& message));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockAudioInputControllerEventHandler);