Revert "[CSS Regions] Mouse over an element does not trigger :hover state for parent when the eleme…

Source/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2972 matching lines @@
     while (parentNode && !parentNode->isElementNode())
         parentNode = parentNode->parentNode();
     return parentNode && toElement(parentNode)->isInert();
 }
 
 void RenderObject::imageChanged(CachedImage* image, const IntRect* rect)
 {
     imageChanged(static_cast<WrappedImagePtr>(image), rect);
 }
 
-RenderObject* RenderObject::hoverAncestor() const
-{
-    // When searching for the hover ancestor and encountering a named flow thread,
-    // the search will continue with the DOM ancestor of the top-most element
-    // in the named flow thread.
-    // See https://code.google.com/p/chromium/issues/detail?id=243278
-    RenderObject* hoverAncestor = parent();
-
-    // Skip anonymous blocks. There's no point in treating them as hover ancestors
-    // and it would also prevent us from continuing the search on the DOM tree
-    // when reaching the named flow thread.
-    if (hoverAncestor && hoverAncestor->isAnonymousBlock())
-        hoverAncestor = hoverAncestor->parent();
-
-    if (hoverAncestor && hoverAncestor->isRenderNamedFlowThread()) {
-        hoverAncestor = 0;
-
-        Node* node = this->node();
-        if (node) {
-            Node* domAncestorNode = node->parentNode();
-            if (domAncestorNode)
-                hoverAncestor = domAncestorNode->renderer();
-        }
-    }
-
-    return hoverAncestor;
-}
-
 Element* RenderObject::offsetParent() const
 {
     if (isRoot() || isBody())
         return 0;
 
     if (isOutOfFlowPositioned() && style()->position() == FixedPosition)
         return 0;
 
     // If A is an area HTML element which has a map HTML element somewhere in the ancestor
     // chain return the nearest ancestor map HTML element and stop this algorithm.
@@ skipping 196 matching lines @@
 {
     if (object1) {
         const WebCore::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif