Have ScopedStyleResolver deal with ContainerNode references, not pointers

Source/core/dom/shadow/ShadowRoot.cpp

 /*
  * Copyright (C) 2011 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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 145 matching lines @@
         return false;
     }
 }
 
 void ShadowRoot::recalcStyle(StyleChange change)
 {
     // ShadowRoot doesn't support custom callbacks.
     ASSERT(!hasCustomStyleCallbacks());
 
     StyleResolver* styleResolver = document().styleResolver();
-    styleResolver->pushParentShadowRoot(this);
+    styleResolver->pushParentShadowRoot(*this);
 
     if (!attached()) {
         attach();
         return;
     }
 
     // When we're set to lazyAttach we'll have a SubtreeStyleChange and we'll need
     // to promote the change to a Force for all our descendants so they get a
     // recalc and will attach.
     if (styleChangeType() >= SubtreeStyleChange)
@@ skipping 12 matching lines @@
                 child->reattach();
             else
                 didReattach = toText(child)->recalcTextStyle(change);
         } else if (child->isElementNode() && shouldRecalcStyle(change, child)) {
             didReattach = toElement(child)->recalcStyle(change);
         }
 
         forceReattachOfAnyWhitespaceSibling = didReattach || forceReattachOfAnyWhitespaceSibling;
     }
 
-    styleResolver->popParentShadowRoot(this);
+    styleResolver->popParentShadowRoot(*this);
     clearNeedsStyleRecalc();
     clearChildNeedsStyleRecalc();
 }
 
 bool ShadowRoot::isActive() const
 {
     for (ShadowRoot* shadowRoot = youngerShadowRoot(); shadowRoot; shadowRoot = shadowRoot->youngerShadowRoot())
         if (!shadowRoot->containsShadowElements())
             return false;
     return true;
@@ skipping 36 matching lines @@
     m_resetStyleInheritance = value;
     if (!isActive())
         return;
 
     setNeedsStyleRecalc();
 }
 
 void ShadowRoot::attach(const AttachContext& context)
 {
     StyleResolver* styleResolver = document().styleResolver();
-    styleResolver->pushParentShadowRoot(this);
+    styleResolver->pushParentShadowRoot(*this);
     DocumentFragment::attach(context);
-    styleResolver->popParentShadowRoot(this);
+    styleResolver->popParentShadowRoot(*this);
 }
 
 Node::InsertionNotificationRequest ShadowRoot::insertedInto(ContainerNode* insertionPoint)
 {
     DocumentFragment::insertedInto(insertionPoint);
 
     if (!insertionPoint->inDocument() || !isOldest())
         return InsertionDone;
 
     // FIXME: When parsing <video controls>, insertedInto() is called many times without invoking removedFrom.
@@ skipping 135 matching lines @@
         if (element->isInsertionPoint())
             insertionPoints.append(toInsertionPoint(element));
     }
 
     ensureShadowRootRareData()->setChildInsertionPoints(insertionPoints);
 
     return m_shadowRootRareData->childInsertionPoints();
 }
 
 }