Oilpan: Make the Node hierarchy RefCountedGarbageCollected instead of TreeShared.

Source/core/dom/FullscreenElementStack.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
@@ skipping 250 matching lines @@
 {
     // The Mozilla "cancelFullScreen()" API behaves like the W3C "fully exit fullscreen" behavior, which
     // is defined as:
     // "To fully exit fullscreen act as if the exitFullscreen() method was invoked on the top-level browsing
     // context's document and subsequently empty that document's fullscreen element stack."
     if (!fullscreenElementFrom(document()->topDocument()))
         return;
 
     // To achieve that aim, remove all the elements from the top document's stack except for the first before
     // calling webkitExitFullscreen():
-    Vector<RefPtr<Element> > replacementFullscreenElementStack;
+    WillBeHeapVector<RefPtrWillBeMember<Element> > replacementFullscreenElementStack;
     replacementFullscreenElementStack.append(fullscreenElementFrom(document()->topDocument()));
     FullscreenElementStack& topFullscreenElementStack = from(document()->topDocument());
     topFullscreenElementStack.m_fullScreenElementStack.swap(replacementFullscreenElementStack);
     topFullscreenElementStack.webkitExitFullscreen();
 }
 
 void FullscreenElementStack::webkitExitFullscreen()
 {
     // The exitFullscreen() method must run these steps:
 
@@ skipping 188 matching lines @@
 void FullscreenElementStack::fullScreenRendererDestroyed()
 {
     m_fullScreenRenderer = 0;
 }
 
 void FullscreenElementStack::fullScreenChangeDelayTimerFired(Timer<FullscreenElementStack>*)
 {
     // Since we dispatch events in this function, it's possible that the
     // document will be detached and GC'd. We protect it here to make sure we
     // can finish the function successfully.
-    RefPtr<Document> protectDocument(document());
-    Deque<RefPtr<Node> > changeQueue;
+    RefPtrWillBeRawPtr<Document> protectDocument(document());
+    WillBeHeapDeque<RefPtrWillBeMember<Node> > changeQueue;
     m_fullScreenChangeEventTargetQueue.swap(changeQueue);
-    Deque<RefPtr<Node> > errorQueue;
+    WillBeHeapDeque<RefPtrWillBeMember<Node> > errorQueue;
     m_fullScreenErrorEventTargetQueue.swap(errorQueue);
 
     while (!changeQueue.isEmpty()) {
-        RefPtr<Node> node = changeQueue.takeFirst();
+        RefPtrWillBeRawPtr<Node> node = changeQueue.takeFirst();
         if (!node)
             node = document()->documentElement();
         // The dispatchEvent below may have blown away our documentElement.
         if (!node)
             continue;
 
         // If the element was removed from our tree, also message the documentElement. Since we may
         // have a document hierarchy, check that node isn't in another document.
         if (!document()->contains(node.get()) && !node->inDocument())
             changeQueue.append(document()->documentElement());
 
         node->dispatchEvent(Event::createBubble(EventTypeNames::webkitfullscreenchange));
     }
 
     while (!errorQueue.isEmpty()) {
-        RefPtr<Node> node = errorQueue.takeFirst();
+        RefPtrWillBeRawPtr<Node> node = errorQueue.takeFirst();
         if (!node)
             node = document()->documentElement();
         // The dispatchEvent below may have blown away our documentElement.
         if (!node)
             continue;
 
         // If the element was removed from our tree, also message the documentElement. Since we may
         // have a document hierarchy, check that node isn't in another document.
         if (!document()->contains(node.get()) && !node->inDocument())
             errorQueue.append(document()->documentElement());
@@ skipping 54 matching lines @@
         target = fullscreen->webkitFullscreenElement();
         if (!target)
             target = fullscreen->webkitCurrentFullScreenElement();
     }
 
     if (!target)
         target = doc;
     m_fullScreenChangeEventTargetQueue.append(target);
 }
 
+void FullscreenElementStack::trace(Visitor* visitor)
+{
+    visitor->trace(m_fullScreenElement);
+    visitor->trace(m_fullScreenElementStack);
+    visitor->trace(m_fullScreenChangeEventTargetQueue);
+    visitor->trace(m_fullScreenErrorEventTargetQueue);
+}
+
 } // namespace WebCore