1 files changed, 1 insertions, 3 deletions
diff --git a/layout/xul/nsStackFrame.cpp b/layout/xul/nsStackFrame.cpp
index 437d558f9..a2ec57adc 100644
--- a/layout/xul/nsStackFrame.cpp
+++ b/layout/xul/nsStackFrame.cpp
@@ -45,7 +45,6 @@ nsStackFrame::nsStackFrame(nsStyleContext* aContext):
 // a bit more.
 void
 nsStackFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
-                                          const nsRect&           aDirtyRect,
                                           const nsDisplayListSet& aLists)
 {
   // BuildDisplayListForChild puts stacking contexts into the PositionedDescendants
@@ -56,8 +55,7 @@ nsStackFrame::BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
   nsIFrame* kid = mFrames.FirstChild();
   while (kid) {
     // Force each child into its own true stacking context.
-    BuildDisplayListForChild(aBuilder, kid, aDirtyRect, kidLists,
-                             DISPLAY_CHILD_FORCE_STACKING_CONTEXT);
+    BuildDisplayListForChild(aBuilder, kid, kidLists, DISPLAY_CHILD_FORCE_STACKING_CONTEXT);
     kid = kid->GetNextSibling();
   }
 }