Invalidate paint properties on paint offset changes

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 3768 matching lines @@
   }
 
   if (scrollType != AnchoringScroll && scrollType != ClampingScroll)
     clearScrollAnchor();
 }
 
 void FrameView::didChangeScrollOffset() {
   frame().loader().client()->didChangeScrollOffset();
   if (frame().isMainFrame())
     frame().host()->chromeClient().mainFrameScrollOffsetChanged();
-
-  if (!RuntimeEnabledFeatures::rootLayerScrollingEnabled()) {
-    // The scroll translation paint property depends on scroll offset.
-    setNeedsPaintPropertyUpdate();
-  }
 }
 
 void FrameView::clearScrollAnchor() {
   if (!RuntimeEnabledFeatures::scrollAnchoringEnabled())
     return;
   m_scrollAnchor.clear();
 }
 
 bool FrameView::hasOverlayScrollbars() const {
   return (horizontalScrollbar() &&
@@ skipping 848 matching lines @@
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.width();
 }
 
 int FrameView::initialViewportHeight() const {
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.height();
 }
 
 }  // namespace blink