Less duplicated code between nodeAtPoint() in LayoutBox and LayoutBlock.

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 767 matching lines @@
 
     PositionWithAffinity positionForPoint(const LayoutPoint&) override;
 
     void removeFloatingOrPositionedChildFromBlockLists();
 
     PaintLayer* enclosingFloatPaintingLayer() const;
 
     virtual int firstLineBoxBaseline() const { return -1; }
     virtual int inlineBlockBaseline(LineDirectionMode) const { return -1; } // Returns -1 if we should skip this box when computing the baseline of an inline-block.
 
+    virtual Node* nodeForHitTest() const { return node(); }
+
     bool shrinkToAvoidFloats() const;
     virtual bool avoidsFloats() const;
 
     virtual void markForPaginationRelayoutIfNeeded(SubtreeLayoutScope&);
 
     bool isWritingModeRoot() const { return !parent() || parent()->style()->getWritingMode() != style()->getWritingMode(); }
     bool isOrthogonalWritingModeRoot() const { return parent() && parent()->isHorizontalWritingMode() != isHorizontalWritingMode(); }
     void markOrthogonalWritingModeRoot();
     void unmarkOrthogonalWritingModeRoot();
 
@@ skipping 234 matching lines @@
     {
         // The frame rect may change because of layout of other objects.
         // Should check this object for paint invalidation.
         if (!needsLayout())
             setMayNeedPaintInvalidation();
     }
 
     // Returns true if the box intersects the viewport visible to the user.
     bool intersectsVisibleViewport();
 
-    bool hitTestChildren(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction);
+    virtual bool isInSelfHitTestingPhase(HitTestAction hitTestAction) const { return hitTestAction == HitTestForeground; }
+    virtual bool hitTestChildren(HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction);
 
     void updateBackgroundAttachmentFixedStatusAfterStyleChange();
 
     // The CSS border box rect for this box.
     //
     // The rectangle is in this box's physical coordinates but with a
     // flipped block-flow direction (see the COORDINATE SYSTEMS section
     // in LayoutBoxModelObject). The location is the distance from this
     // object's border edge to the container's border edge (which is not
     // always the parent). Thus it includes any logical top/left along
@@ skipping 111 matching lines @@
         || breakValue == BreakLeft
         || breakValue == BreakPage
         || breakValue == BreakRecto
         || breakValue == BreakRight
         || breakValue == BreakVerso;
 }
 
 } // namespace blink
 
 #endif // LayoutBox_h