* Refactored a method for getting the transit from a mouse moved message.

* In _StealMouseMessage(), don't maintain fLastMouseMovedView, instead,
  prevent B_MOUSE_MOVED message from being stolen that are important for
  detecting transit changes. The point is that some apps (like Tracker) are
  shooting themselves in the foot because they steal mouse messages via
  GetMouse() in one place, but then rely on sane transit values in another
  place. The way it works now, the view in question may get notified of the
  same mouse moved coordinate twice, once via GetMouse() and once via
  MouseMoved().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28002 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/Window.h

@@ -301,6 +301,8 @@ private:
 								BHandler* target, bool usePreferred);
 			bool			_StealMouseMessage(BMessage* message,
 								bool& deleteMessage);
+			uint32			_TransitForMouseMoved(BView* view,
+								BView* viewUnderMouse) const;
 
 			bool			InUpdate();
 			void			_DequeueAll();