Move rendering/RenderBox to layout/LayoutBox.

Source/core/layout/LayoutImage.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
  *
@@ skipping 320 matching lines @@
 }
 
 void LayoutImage::computeIntrinsicRatioInformation(FloatSize& intrinsicSize, double& intrinsicRatio) const
 {
     LayoutReplaced::computeIntrinsicRatioInformation(intrinsicSize, intrinsicRatio);
 
     // Our intrinsicSize is empty if we're rendering generated images with relative width/height. Figure out the right intrinsic size to use.
     if (intrinsicSize.isEmpty() && (m_imageResource->imageHasRelativeWidth() || m_imageResource->imageHasRelativeHeight())) {
         LayoutObject* containingBlock = isOutOfFlowPositioned() ? container() : this->containingBlock();
         if (containingBlock->isBox()) {
-            RenderBox* box = toRenderBox(containingBlock);
+            LayoutBox* box = toLayoutBox(containingBlock);
             intrinsicSize.setWidth(box->availableLogicalWidth().toFloat());
             intrinsicSize.setHeight(box->availableLogicalHeight(IncludeMarginBorderPadding).toFloat());
         }
     }
     // Don't compute an intrinsic ratio to preserve historical WebKit behavior if we're painting alt text and/or a broken image.
     // Video is excluded from this behavior because video elements have a default aspect ratio that a failed poster image load should not override.
     if (m_imageResource && m_imageResource->errorOccurred() && !isVideo()) {
         intrinsicRatio = 1;
         return;
     }
 }
 
 bool LayoutImage::needsPreferredWidthsRecalculation() const
 {
     if (LayoutReplaced::needsPreferredWidthsRecalculation())
         return true;
     return embeddedContentBox();
 }
 
-RenderBox* LayoutImage::embeddedContentBox() const
+LayoutBox* LayoutImage::embeddedContentBox() const
 {
     if (!m_imageResource)
         return 0;
 
     ImageResource* cachedImage = m_imageResource->cachedImage();
     if (cachedImage && cachedImage->image() && cachedImage->image()->isSVGImage())
         return toSVGImage(cachedImage->image())->embeddedContentBox();
 
     return 0;
 }
 
 } // namespace blink