virtual void ToggleSelected(int model_index) OVERRIDE;
virtual void AddSelectionFromAnchorTo(int model_index) OVERRIDE;
virtual void CloseTab(int model_index, CloseTabSource source) OVERRIDE;
+ virtual void ToggleTabAudioMute(int model_index) OVERRIDE;
virtual void ShowContextMenuForTab(Tab* tab,
const gfx::Point& p,
ui::MenuSourceType source_type) OVERRIDE;