Use LocalStyleChange for :hover/:active not affected by descendants.

Source/core/dom/ContainerNode.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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 817 matching lines @@
 
 void ContainerNode::setActive(bool down)
 {
     if (down == active())
         return;
 
     Node::setActive(down);
 
     // FIXME: Why does this not need to handle the display: none transition like :hover does?
     if (renderer()) {
-        if (renderStyle()->affectedByActive() || (isElementNode() && toElement(this)->childrenAffectedByActive()))
+        if (isElementNode() && toElement(this)->childrenAffectedByActive())
             setNeedsStyleRecalc(SubtreeStyleChange);
+        else if (renderStyle()->affectedByActive())
+            setNeedsStyleRecalc(LocalStyleChange);
+
         if (renderStyle()->hasAppearance())
             RenderTheme::theme().stateChanged(renderer(), PressedState);
     }
 }
 
 void ContainerNode::setHovered(bool over)
 {
     if (over == hovered())
         return;
 
     Node::setHovered(over);
 
     // If :hover sets display: none we lose our hover but still need to recalc our style.
     if (!renderer()) {
-        if (!over)
+        if (over)
+            return;
+        if (isElementNode() && toElement(this)->childrenAffectedByHover())
             setNeedsStyleRecalc(SubtreeStyleChange);
+        else
+            setNeedsStyleRecalc(LocalStyleChange);
         return;
     }
 
-    if (renderer()) {
-        if (renderStyle()->affectedByHover() || (isElementNode() && toElement(this)->childrenAffectedByHover()))
-            setNeedsStyleRecalc(SubtreeStyleChange);
-        if (renderer() && renderer()->style()->hasAppearance())
-            RenderTheme::theme().stateChanged(renderer(), HoverState);
-    }
+    if (isElementNode() && toElement(this)->childrenAffectedByHover())
+        setNeedsStyleRecalc(SubtreeStyleChange);
+    else if (renderStyle()->affectedByHover())
+        setNeedsStyleRecalc(LocalStyleChange);
+
+    if (renderer()->style()->hasAppearance())
+        RenderTheme::theme().stateChanged(renderer(), HoverState);
 }
 
 PassRefPtr<HTMLCollection> ContainerNode::children()
 {
     return ensureRareData().ensureNodeLists().addCacheWithAtomicName<HTMLCollection>(this, NodeChildren);
 }
 
 Element* ContainerNode::firstElementChild() const
 {
     return ElementTraversal::firstWithin(*this);
@@ skipping 176 matching lines @@
         return true;
 
     if (node->isElementNode() && toElement(node)->shadow())
         return true;
 
     return false;
 }
 #endif
 
 } // namespace WebCore