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/toplevel.h

@@ -182,6 +182,11 @@ public:
     // set the frame icons
     virtual void SetIcons(const wxIconBundle& icons) { m_icons = icons; }
 
+    virtual bool EnableFullScreenView(bool WXUNUSED(enable) = true)
+    {
+        return false;
+    }
+
     // maximize the window to cover entire screen
     virtual bool ShowFullScreen(bool show, long style = wxFULLSCREEN_ALL) = 0;