* BView::FillRegion() sends the BRegion data instead of decomposing

it and rebuilding it on the server side (that causes a huge speed
  up for regions containing many rects)
* There is a method in ServerLink that could have been used, but I
  actually needed to add the direct BRegion support to LinkReceiver
* added LinkReceiver as a friend to BRegion class
* ServerApp and ServerWindow keep the CursorManager locked after they
  have retrieved a cursor until they have called Acquire() on the
  cursor. (Axel: what good is using atomic* stuff in Acquire() and
  Release() if we have to protect this by a lock anyways?)


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16957 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/os/interface/Region.h

@@ -17,10 +17,10 @@
 
 namespace BPrivate {
 	class ServerLink;
+	class LinkReceiver;
 };
 
-
-/* Integer rect used to define a cliping rectangle. All bounds are included */
+/* Integer rect used to define a clipping rectangle. All bounds are inclusive. */
 /* Moved from DirectWindow.h */
 typedef struct {
 	int32	left;
@@ -71,6 +71,7 @@ private:
 	friend class BDirectWindow;
 	friend class Support;
 	friend class BPrivate::ServerLink;
+	friend class BPrivate::LinkReceiver;
 
 		void	_AddRect(clipping_rect r);
 		void	set_size(long new_size);