Index: ash/system/brightness/tray_brightness.h |
diff --git a/ash/system/brightness/tray_brightness.h b/ash/system/brightness/tray_brightness.h |
index 6fc658f5c357cb1a11c225612ee539b3c994a4a4..732f1d8bca3037e10803196ebe00c69ca59c9cd6 100644 |
--- a/ash/system/brightness/tray_brightness.h |
+++ b/ash/system/brightness/tray_brightness.h |
@@ -20,7 +20,7 @@ class BrightnessView; |
class TrayBrightness : public SystemTrayItem, |
public BrightnessObserver { |
public: |
- TrayBrightness(); |
+ explicit TrayBrightness(SystemTray* system_tray); |
virtual ~TrayBrightness(); |
private: |