backporting r75289

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75291 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/osx/evtloop.h

@@ -30,7 +30,9 @@ public:
     
 #ifdef __WXOSX_COCOA__
     // skip wxGUIEventLoop to avoid missing Enter/Exit notifications
-    int Run() { return wxCFEventLoop::Run(); }
+    virtual int Run() { return wxCFEventLoop::Run(); }
+
+    virtual bool ProcessIdle();
 #endif
 protected:
     virtual void OSXDoRun();