Let synchronized painting generate correct paint invalidation rects

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 2500 matching lines @@
     ASSERT(graphicsLayer->paintController());
     GraphicsContext context(*graphicsLayer->paintController());
 
     // TODO(chrishtr): fix unit tests to not inject one-off interest rects.
     if (interestRect)
         graphicsLayer->paint(context, roundedIntRect(*interestRect));
     else
         graphicsLayer->paintIfNeeded(context);
 
     if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled())
-        graphicsLayer->paintController()->commitNewDisplayItems(graphicsLayer);
+        graphicsLayer->paintController()->commitNewDisplayItems();
 
     for (auto& child : graphicsLayer->children())
         synchronizedPaintRecursively(child, interestRect);
 }
 
 void FrameView::compositeForSlimmingPaintV2()
 {
     ASSERT(RuntimeEnabledFeatures::slimmingPaintV2Enabled());
     ASSERT(frame() == page()->mainFrame() || (!frame().tree().parent()->isLocalFrame()));
 
     forAllFrameViews([](FrameView& frameView) { frameView.lifecycle().advanceTo(DocumentLifecycle::InCompositingForSlimmingPaintV2); });
 
     // Detached frames can have no root graphics layer.
     if (GraphicsLayer* rootGraphicsLayer = layoutView()->layer()->graphicsLayerBacking())
-        rootGraphicsLayer->paintController()->commitNewDisplayItems(rootGraphicsLayer);
+        rootGraphicsLayer->paintController()->commitNewDisplayItems();
 
     forAllFrameViews([](FrameView& frameView) { frameView.lifecycle().advanceTo(DocumentLifecycle::CompositingForSlimmingPaintV2Clean); });
 }
 
 void FrameView::updateFrameTimingRequestsIfNeeded()
 {
     GraphicsLayerFrameTimingRequests graphicsLayerTimingRequests;
     // TODO(mpb) use a 'dirty' bit to not call this every time.
     collectFrameTimingRequestsRecursive(graphicsLayerTimingRequests);
 
@@ skipping 1531 matching lines @@
 }
 
 bool FrameView::canThrottleRendering() const
 {
     if (!RuntimeEnabledFeatures::renderingPipelineThrottlingEnabled())
         return false;
     return m_hiddenForThrottling && m_crossOriginForThrottling;
 }
 
 } // namespace blink