Fix LayoutObject::mapToVisibleRectInContainerSpace()

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 780 matching lines @@
     LayoutRect logicalLayoutOverflowRectForPropagation(const ComputedStyle&) const;
     LayoutRect layoutOverflowRectForPropagation(const ComputedStyle&) const;
 
     bool hasOverflowModel() const { return m_overflow; }
     bool hasVisualOverflow() const { return m_overflow && !borderBoxRect().contains(m_overflow->visualOverflowRect()); }
 
     virtual bool needsPreferredWidthsRecalculation() const;
     virtual void computeIntrinsicRatioInformation(FloatSize& /* intrinsicSize */, double& /* intrinsicRatio */) const { }
 
     IntSize scrolledContentOffset() const;
-    void applyCachedScrollOffsetForPaintInvalidation(LayoutRect& paintRect) const;
-    void applyCachedClipAndScrollOffsetForPaintInvalidation(LayoutRect& paintRect) const;
+
+    // Precondition: this object has overflow clip.
+    // Applies scroll offset to map the rect from scrolling contents space to the space of this object.
+    // If this object is not a paint invalidation container, overflow clip is also applied.
+    void applyOverflowClipAndScrollOffsetForPaintInvalidationIfNeeded(LayoutRect&) const;
 
     virtual bool hasRelativeLogicalWidth() const;
     virtual bool hasRelativeLogicalHeight() const;
 
     bool hasHorizontalLayoutOverflow() const
     {
         if (!m_overflow)
             return false;
 
         LayoutRect layoutOverflowRect = m_overflow->layoutOverflowRect();
@@ skipping 252 matching lines @@
         if (UNLIKELY(inlineBoxWrapper() != nullptr))
             deleteLineBoxWrapper();
     }
 
     ensureRareData().m_inlineBoxWrapper = boxWrapper;
 }
 
 } // namespace blink
 
 #endif // LayoutBox_h