Exorcise gScreenNum.

git-svn-id: svn://10.0.0.236/trunk@38504 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/widget/src/xlib/nsAppShell.cpp

@@ -131,12 +131,12 @@ NS_METHOD nsAppShell::Create(int* argc, char ** argv)
     exit(1);
   }
   _Xdebug = 1;
-  gScreenNum = DefaultScreen(gDisplay);
   gScreen = DefaultScreenOfDisplay(gDisplay);
   // init the rgb layer.  this will provide
   // the visual information for us.
   xlib_rgb_init(gDisplay, gScreen);
   gVisual = xlib_rgb_get_visual();
+
   // set the static vars for this class so we can find our
   // way around...
   vis_template.visualid = XVisualIDFromVisual(gVisual);

mozilla/widget/src/xlib/nsWidget.h

@@ -141,7 +141,6 @@ protected:
 
 extern Display         *gDisplay;
 extern Screen          *gScreen;
-extern int              gScreenNum;
 extern int              gDepth;
 extern Visual          *gVisual;
 extern XVisualInfo     *gVisualInfo;