1 files changed, 3 insertions, 1 deletions
diff --git a/Source/WebCore/platform/ScrollableArea.cpp b/Source/WebCore/platform/ScrollableArea.cpp
index 3506e5592..103e03899 100644
--- a/Source/WebCore/platform/ScrollableArea.cpp
+++ b/Source/WebCore/platform/ScrollableArea.cpp
@@ -142,6 +142,7 @@ void ScrollableArea::notifyScrollPositionChanged(const IntPoint& position)
 
 void ScrollableArea::scrollPositionChanged(const IntPoint& position)
 {
+    IntPoint oldPosition = scrollPosition();
     // Tell the derived class to scroll its contents.
     setScrollOffset(position);
 
@@ -168,7 +169,8 @@ void ScrollableArea::scrollPositionChanged(const IntPoint& position)
             verticalScrollbar->invalidate();
     }
 
-    scrollAnimator()->notifyContentAreaScrolled();
+    if (scrollPosition() != oldPosition)
+        scrollAnimator()->notifyContentAreaScrolled();
 }
 
 bool ScrollableArea::handleWheelEvent(const PlatformWheelEvent& wheelEvent)