Move sticky position constraints update to the pre-paint tree walk.

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 2921 matching lines @@
 void FrameView::updatePaintProperties() {
   TRACE_EVENT0("blink", "FrameView::updatePaintProperties");
 
   if (!m_paintController)
     m_paintController = PaintController::create();
 
   forAllNonThrottledFrameViews([](FrameView& frameView) {
     frameView.lifecycle().advanceTo(DocumentLifecycle::InPrePaint);
   });
 
-  // TODO(chrishtr): merge this into the actual pre-paint tree walk.
-  if (RuntimeEnabledFeatures::slimmingPaintV2Enabled())
-    forAllNonThrottledFrameViews([](FrameView& frameView) {
-      CompositingInputsUpdater(frameView.layoutView()->layer()).update();
-    });
-
   if (RuntimeEnabledFeatures::slimmingPaintInvalidationEnabled())
     PrePaintTreeWalk().walk(*this);
 
   forAllNonThrottledFrameViews([](FrameView& frameView) {
     frameView.lifecycle().advanceTo(DocumentLifecycle::PrePaintClean);
   });
 }
 
 void FrameView::synchronizedPaint() {
   TRACE_EVENT0("blink", "FrameView::synchronizedPaint");
@@ skipping 1704 matching lines @@
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.width();
 }
 
 int FrameView::initialViewportHeight() const {
   DCHECK(m_frame->isMainFrame());
   return m_initialViewportSize.height();
 }
 
 }  // namespace blink