Added support for using OS X' full screen API (available since OS X 10.7).

Added EnableFullScreenView() to have a full screen button in the title bar and also allowing ShowFullScreen() to make use of the newer full screen API.

See #14357.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76495 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/cocoa/private.h

@@ -239,6 +239,8 @@ public :
 
     virtual bool IsFullScreen() const;
 
+    bool EnableFullScreenView(bool enable) wxOVERRIDE;
+
     virtual bool ShowFullScreen(bool show, long style);
 
     virtual void ShowWithoutActivating();