Index: ash/system/audio/audio_observer.h |
diff --git a/ash/system/audio/audio_observer.h b/ash/system/audio/audio_observer.h |
index ebf5adb8d3c80378b891e1e4393385a250cc8817..d0ff405c42076c0a2b7bbb8ab37a21c2a2aecbd3 100644 |
--- a/ash/system/audio/audio_observer.h |
+++ b/ash/system/audio/audio_observer.h |
@@ -14,6 +14,7 @@ class ASH_EXPORT AudioObserver { |
virtual ~AudioObserver() {} |
virtual void OnVolumeChanged(float percent) = 0; |
+ virtual void OnMuteToggled() = 0; |
}; |
} // namespace ash |