cros: allow aura window not considered activatable for pointer event

ui/wm/core/focus_controller.h

Index: ui/wm/core/focus_controller.h
diff --git a/ui/wm/core/focus_controller.h b/ui/wm/core/focus_controller.h
index 85858cfa27e30c17770b5cc3c3717ff152f2635f..b56c667121d4b7ab430a2e1469d553a66b0ab94c 100644
--- a/ui/wm/core/focus_controller.h
+++ b/ui/wm/core/focus_controller.h
@@ -116,7 +116,8 @@ class WM_EXPORT FocusController : public aura::client::ActivationClient,
   // Called when an attempt is made to focus or activate a window via an input
   // event targeted at that window. Rules determine the best focusable window
   // for the input window.
-  void WindowFocusedFromInputEvent(aura::Window* window);
+  void WindowFocusedFromInputEvent(aura::Window* window,
+                                   const ui::Event* event);
 
   aura::Window* active_window_;
   aura::Window* focused_window_;