DeleteOnLoseFocusChangeObserver 183 ui/wm/core/focus_controller_unittest.cc explicit DeleteOnLoseFocusChangeObserver(aura::Window* window) DeleteOnLoseFocusChangeObserver 212 ui/wm/core/focus_controller_unittest.cc DISALLOW_COPY_AND_ASSIGN(DeleteOnLoseFocusChangeObserver); DeleteOnLoseFocusChangeObserver 784 ui/wm/core/focus_controller_unittest.cc DeleteOnLoseFocusChangeObserver observer1(to_delete);