Move Image ownership out of CSSValue

Source/core/style/StyleFetchedImage.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008 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 17 matching lines @@
 #include "core/fetch/ImageResource.h"
 #include "core/layout/LayoutObject.h"
 #include "core/svg/graphics/SVGImage.h"
 
 namespace blink {
 
 StyleFetchedImage::StyleFetchedImage(ImageResource* image, Document* document)
     : m_image(image)
     , m_document(document)
 {
+    printf("%p: StyleFetchedImage created\n", this);
     m_isImageResource = true;
     m_image->addClient(this);
 }
 
 StyleFetchedImage::~StyleFetchedImage()
 {
     m_image->removeClient(this);
 }
 
 PassRefPtrWillBeRawPtr<CSSValue> StyleFetchedImage::cssValue() const
@@ skipping 74 matching lines @@
     return m_image->currentFrameKnownToBeOpaque(layoutObject);
 }
 
 DEFINE_TRACE(StyleFetchedImage)
 {
     visitor->trace(m_document);
     StyleImage::trace(visitor);
 }
 
 }