Oilpan: make DocumentFragment a heap allocated object.

Source/core/dom/shadow/ElementShadow.cpp

 /*
  * Copyright (C) 2012 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 125 matching lines @@
 
 ElementShadow::~ElementShadow()
 {
 #if !ENABLE(OILPAN)
     removeDetachedShadowRoots();
 #endif
 }
 
 ShadowRoot& ElementShadow::addShadowRoot(Element& shadowHost, ShadowRoot::ShadowRootType type)
 {
-    RefPtr<ShadowRoot> shadowRoot = ShadowRoot::create(shadowHost.document(), type);
+    RefPtrWillBeRawPtr<ShadowRoot> shadowRoot = ShadowRoot::create(shadowHost.document(), type);
 
     if (type == ShadowRoot::AuthorShadowRoot && (!youngestShadowRoot() || youngestShadowRoot()->type() == ShadowRoot::UserAgentShadowRoot))
         shadowHost.willAddFirstAuthorShadowRoot();
 
     for (ShadowRoot* root = youngestShadowRoot(); root; root = root->olderShadowRoot())
         root->lazyReattachIfAttached();
 
     shadowRoot->setParentOrShadowHostNode(&shadowHost);
     shadowRoot->setParentTreeScope(shadowHost.treeScope());
     m_shadowRoots.push(shadowRoot.get());
     ChildNodeInsertionNotifier(shadowHost).notify(*shadowRoot);
     setNeedsDistributionRecalc();
 
     InspectorInstrumentation::didPushShadowRoot(&shadowHost, shadowRoot.get());
 
     ASSERT(m_shadowRoots.head());
     ASSERT(shadowRoot.get() == m_shadowRoots.head());
     return *m_shadowRoots.head();
 }
 
 #if !ENABLE(OILPAN)
 void ElementShadow::removeDetachedShadowRoots()
 {
     // Dont protect this ref count.
     Element* shadowHost = host();
     ASSERT(shadowHost);
 
-    while (RefPtr<ShadowRoot> oldRoot = m_shadowRoots.head()) {
+    while (RefPtrWillBeRawPtr<ShadowRoot> oldRoot = m_shadowRoots.head()) {
         InspectorInstrumentation::willPopShadowRoot(shadowHost, oldRoot.get());
         shadowHost->document().removeFocusedElementOfSubtree(oldRoot.get());
         m_shadowRoots.removeHead();
         oldRoot->setParentOrShadowHostNode(0);
         oldRoot->setParentTreeScope(shadowHost->document());
         oldRoot->setPrev(0);
         oldRoot->setNext(0);
     }
 }
 #endif
@@ skipping 172 matching lines @@
 void ElementShadow::trace(Visitor* visitor)
 {
     visitor->trace(m_nodeToInsertionPoints);
     // Shadow roots are linked with previous and next pointers which are traced.
     // It is therefore enough to trace one of the shadow roots here and the
     // rest will be traced from there.
     visitor->trace(m_shadowRoots.head());
 }
 
 } // namespace