Allows menu host windows to be enumerated in DragTargetWindowFinder

ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h

Index: ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h
diff --git a/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h b/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h
index 9fd51cb3bc820366a1f7f3d2dda3df255f1074c1..5140b3767ea7ba0d457e349a07bf70440a72faa3 100644
--- a/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h
+++ b/ui/views/widget/desktop_aura/x11_whole_screen_move_loop.h
@@ -62,6 +62,9 @@ class X11WholeScreenMoveLoop : public base::MessagePumpDispatcher {
   // (defined as having a pixel with alpha > 32). If so, return true.
   bool CheckIfIconValid();
 
+  // Dispatch mouse movement event to |delegate_| in a posted task.
+  void DispatchMouseMovement();
+
   X11WholeScreenMoveLoopDelegate* delegate_;
 
   // Are we running a nested message loop from RunMoveLoop()?
@@ -81,6 +84,8 @@ class X11WholeScreenMoveLoop : public base::MessagePumpDispatcher {
   scoped_ptr<Widget> drag_widget_;
   gfx::ImageSkia drag_image_;
   gfx::Vector2dF drag_offset_;
+  XMotionEvent last_xmotion_;
+  bool motion_task_posted_;
 
   DISALLOW_COPY_AND_ASSIGN(X11WholeScreenMoveLoop);
 };