Add -size method from 10.6

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/branches/gnustep_testplant_branch@35701 72102866-910b-0410-8b05-ffd578937521

Headers/AppKit/NSMenu.h

@@ -623,6 +623,9 @@
  */
 - (void) setTitle: (NSString*)aTitle;
 
+#if OS_API_VERSION(MAC_OS_X_VERSION_10_6, GS_API_LATEST)
+- (NSSize) size;
+#endif
 - (void) sizeToFit;
 
 - (void) submenuAction: (id)sender;

Source/NSMenu.m

@@ -1480,6 +1480,13 @@ static BOOL menuBarVisible = YES;
   return _menu.changedMessagesEnabled;
 }
 
+- (NSSize) size
+{
+  if (_view)
+    return [_view frame].size;
+  return NSZeroSize;
+}
+
 - (void) sizeToFit
 {
   NSRect oldWindowFrame;