factoring out common carbon/non-carbon clipboard support code

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@19062 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mac/uma.h

@@ -214,6 +214,10 @@ OSStatus UMAGetHelpMenu(
 
 OSStatus UMADrawThemePlacard( const Rect *inRect , ThemeDrawState inState ) ;
 
+// clipboard
+
+OSStatus UMAPutScrap( Size size , OSType type , void *data ) ;
+
 // accessor helpers
 
 #if !TARGET_CARBON