[ImageResource 4] Split ImageResource into Resource and Image parts

third_party/WebKit/Source/core/paint/SVGImagePainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/SVGImagePainter.h"
 
 #include "core/layout/ImageQualityController.h"
 #include "core/layout/LayoutImageResource.h"
 #include "core/layout/svg/LayoutSVGImage.h"
 #include "core/paint/LayoutObjectDrawingRecorder.h"
@@ skipping 74 matching lines @@
 
 FloatSize SVGImagePainter::computeImageViewportSize() const {
   DCHECK(m_layoutSVGImage.imageResource()->hasImage());
 
   if (toSVGImageElement(m_layoutSVGImage.element())
           ->preserveAspectRatio()
           ->currentValue()
           ->align() != SVGPreserveAspectRatio::kSvgPreserveaspectratioNone)
     return m_layoutSVGImage.objectBoundingBox().size();
 
-  ImageResource* cachedImage = m_layoutSVGImage.imageResource()->cachedImage();
+  ImageResourceContent* cachedImage =
+      m_layoutSVGImage.imageResource()->cachedImage();
 
   // Images with preserveAspectRatio=none should force non-uniform scaling. This
   // can be achieved by setting the image's container size to its viewport size
   // (i.e. concrete object size returned by the default sizing algorithm.)  See
   // https://www.w3.org/TR/SVG/single-page.html#coords-PreserveAspectRatioAttribute
   // and https://drafts.csswg.org/css-images-3/#default-sizing.
 
   // Avoid returning the size of the broken image.
   if (cachedImage->errorOccurred())
     return FloatSize();
 
   if (cachedImage->getImage()->isSVGImage())
     return toSVGImage(cachedImage->getImage())
         ->concreteObjectSize(m_layoutSVGImage.objectBoundingBox().size());
 
   return FloatSize(cachedImage->getImage()->size());
 }
 
 }  // namespace blink