Apply control clips in LayoutBox::clippingRect()

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc.
  *               All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1132 matching lines @@
   IntSize result =
       scrollableArea->scrollOffsetInt() + originAdjustmentForScrollbars();
   if (isHorizontalWritingMode() &&
       shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
     result.expand(-verticalScrollbarWidth(), 0);
   return result;
 }
 
 LayoutRect LayoutBox::clippingRect() const {
   LayoutRect result = LayoutRect(LayoutRect::infiniteIntRect());
-  if (hasOverflowClip() || style()->containsPaint())
+  if (shouldClipOverflow())
     result = overflowClipRect(LayoutPoint());
 
   if (hasClip())
     result.intersect(clipRect(LayoutPoint()));
 
   return result;
 }
 
 bool LayoutBox::mapScrollingContentsRectToBoxSpace(
     TransformState& transformState,
@@ skipping 1179 matching lines @@
       break;
   }
   transformState.move(-offsetFromContainer);
 }
 
 bool LayoutBox::mapToVisualRectInAncestorSpaceInternal(
     const LayoutBoxModelObject* ancestor,
     TransformState& transformState,
     VisualRectFlags visualRectFlags) const {
   inflateVisualRectForFilter(transformState);
-

[pdr., 2017/03/28 03:30:20]

Nit: remove this

   if (ancestor == this)
     return true;
 
   AncestorSkipInfo skipInfo(ancestor, true);
   LayoutObject* container = this->container(&skipInfo);
   LayoutBox* tableRowContainer = nullptr;
   // Skip table row because cells and rows are in the same coordinate space (see
   // below, however for more comments about when |ancestor| is the table row).
   if (isTableCell()) {
     DCHECK(container->isTableRow() && parentBox() == container);
@@ skipping 3389 matching lines @@
 
 void LayoutBox::MutableForPainting::
     savePreviousContentBoxSizeAndLayoutOverflowRect() {
   auto& rareData = layoutBox().ensureRareData();
   rareData.m_hasPreviousContentBoxSizeAndLayoutOverflowRect = true;
   rareData.m_previousContentBoxSize = layoutBox().contentBoxRect().size();
   rareData.m_previousLayoutOverflowRect = layoutBox().layoutOverflowRect();
 }
 
 }  // namespace blink