Move hoverAncestor() override to LayoutBlockFlow.

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

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1952 matching lines @@
     // inline boxes above and below us (thus getting merged with them to form a single irregular
     // shape).
     // FIXME: This is wrong for vertical writing-modes.
     // https://bugs.webkit.org/show_bug.cgi?id=46781
     LayoutRect localRect(LayoutPoint(), size());
     localRect.expand(collapsedMarginBoxLogicalOutsets());
     quads.append(localToAbsoluteQuad(FloatRect(localRect)));
     continuation()->absoluteQuads(quads);
 }
 
+LayoutObject* LayoutBlockFlow::hoverAncestor() const
+{
+    return isAnonymousBlockContinuation() ? continuation() : LayoutBlock::hoverAncestor();
+}
+
 RootInlineBox* LayoutBlockFlow::createAndAppendRootInlineBox()
 {
     RootInlineBox* rootBox = createRootInlineBox();
     m_lineBoxes.appendLineBox(rootBox);
 
     return rootBox;
 }
 
 void LayoutBlockFlow::deleteLineBoxTree()
 {
@@ skipping 1470 matching lines @@
             if (!rect.isEmpty())
                 rects.append(rect);
         }
     }
 
     if (inlineElementContinuation)
         inlineElementContinuation->addOutlineRects(rects, additionalOffset + (inlineElementContinuation->containingBlock()->location() - location()), includeBlockOverflows);
 }
 
 } // namespace blink