diff --git a/layout/generic/nsGfxScrollFrame.cpp b/layout/generic/nsGfxScrollFrame.cpp
index 3474a53f587..4ee404cc334 100644
--- a/layout/generic/nsGfxScrollFrame.cpp
+++ b/layout/generic/nsGfxScrollFrame.cpp
@@ -1575,7 +1575,7 @@ void nsGfxScrollFrameInner::MarkActive()
   }
 }
 
-void nsGfxScrollFrameInner::ScrollVisual(nsIntPoint aPixDelta)
+void nsGfxScrollFrameInner::ScrollVisual()
 {
   nsRootPresContext* rootPresContext = mOuter->PresContext()->GetRootPresContext();
   if (!rootPresContext) {
@@ -1665,7 +1665,7 @@ nsGfxScrollFrameInner::ScrollToImpl(nsPoint aPt)
   mScrolledFrame->SetPosition(mScrollPort.TopLeft() - pt);
 
   // We pass in the amount to move visually
-  ScrollVisual(curPosDevPx - ptDevPx);
+  ScrollVisual();
 
   presContext->PresShell()->SynthesizeMouseMove(PR_TRUE);
   UpdateScrollbarPosition();
diff --git a/layout/generic/nsGfxScrollFrame.h b/layout/generic/nsGfxScrollFrame.h
index 015d0b9271c..7ef4bccceed 100644
--- a/layout/generic/nsGfxScrollFrame.h
+++ b/layout/generic/nsGfxScrollFrame.h
@@ -154,7 +154,7 @@ public:
   static void AsyncScrollCallback(nsITimer *aTimer, void* anInstance);
   void ScrollTo(nsPoint aScrollPosition, nsIScrollableFrame::ScrollMode aMode);
   void ScrollToImpl(nsPoint aScrollPosition);
-  void ScrollVisual(nsIntPoint aPixDelta);
+  void ScrollVisual();
   void ScrollBy(nsIntPoint aDelta, nsIScrollableFrame::ScrollUnit aUnit,
                 nsIScrollableFrame::ScrollMode aMode, nsIntPoint* aOverflow);
   void ScrollToRestoredPosition();