OnWillFocusWindow 42 ui/aura/client/default_activation_client.h virtual bool OnWillFocusWindow(Window* window, OnWillFocusWindow 57 ui/wm/core/focus_controller.h virtual bool OnWillFocusWindow(aura::Window* window, OnWillFocusWindow 49 ui/wm/public/activation_client.h virtual bool OnWillFocusWindow(Window* window, const ui::Event* event) = 0;