Fix bug #74870. "Cookie dialog invisible with moz on second screen of Xinerama". Patch from Chris P. Ross <cross@distal.com>. sr=blizzard, r=jwbaker@acm.org

gfx/src/gtk/nsScreenGtk.cpp

@@ -81,8 +81,8 @@ nsScreenGtk :: GetRect(PRInt32 *outLeft, PRInt32 *outTop, PRInt32 *outWidth, PRI
 NS_IMETHODIMP
 nsScreenGtk :: GetAvailRect(PRInt32 *outLeft, PRInt32 *outTop, PRInt32 *outWidth, PRInt32 *outHeight)
 {
-  *outTop = mXOrg;
-  *outLeft = mYOrg;
+  *outLeft = mXOrg;
+  *outTop = mYOrg;
   *outWidth = mWidth;
   *outHeight = mHeight;