Support display: contents for elements, first-line and first-letter pseudos.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2006 Apple Computer, Inc.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 65 matching lines @@
   void clearHitTestCache();
 
   const char* name() const override { return "LayoutView"; }
 
   bool isOfType(LayoutObjectType type) const override {
     return type == LayoutObjectLayoutView || LayoutBlockFlow::isOfType(type);
   }
 
   PaintLayerType layerTypeRequired() const override { return NormalPaintLayer; }
 
-  bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override;
-
   void layout() override;
   void updateLogicalWidth() override;
   void computeLogicalHeight(LayoutUnit logicalHeight,
                             LayoutUnit logicalTop,
                             LogicalExtentComputedValues&) const override;
 
   // Based on FrameView::layoutSize, but:
   // - checks for null FrameView
   // - returns 0x0 if using printing layout
   // - scrollbar exclusion is compatible with root layer scrolling
@@ skipping 222 matching lines @@
   Persistent<HitTestCache> m_hitTestCache;
 
   Vector<LayoutMedia*> m_mediaForPositionNotification;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutView, isLayoutView());
 
 }  // namespace blink
 
 #endif  // LayoutView_h