Change audio IPC enums from kConstantStyle to MACRO_STYLE

media/audio/audio_output_device.h

Index: media/audio/audio_output_device.h
diff --git a/media/audio/audio_output_device.h b/media/audio/audio_output_device.h
index ca11b80d9900dfc0d52ac00d621522aa18abf9d0..6255c71fdba8e99155622d78b7abc825a94cb256 100644
--- a/media/audio/audio_output_device.h
+++ b/media/audio/audio_output_device.h
@@ -98,7 +98,7 @@ class MEDIA_EXPORT AudioOutputDevice
 
   // Methods called on IO thread ----------------------------------------------
   // AudioOutputIPCDelegate methods.
-  void OnStateChanged(AudioOutputIPCDelegate::State state) override;
+  void OnStateChanged(AudioOutputIPCDelegateState state) override;
   void OnStreamCreated(base::SharedMemoryHandle handle,
                        base::SyncSocket::Handle socket_handle,
                        int length) override;