Move rendering/RenderBox to layout/LayoutBox.

Source/core/html/HTMLImageElement.cpp

Index: Source/core/html/HTMLImageElement.cpp
diff --git a/Source/core/html/HTMLImageElement.cpp b/Source/core/html/HTMLImageElement.cpp
index 095b4fcf749bfb4eb6b59c74dad0ad83d9b4861a..6ea8fba7eb844baf154c3181ebd589b59981b4db 100644
--- a/Source/core/html/HTMLImageElement.cpp
+++ b/Source/core/html/HTMLImageElement.cpp
@@ -421,7 +421,7 @@ int HTMLImageElement::width(bool ignorePendingStylesheets)
     else
         document().updateLayout();
 
-    RenderBox* box = renderBox();
+    LayoutBox* box = layoutBox();
     return box ? adjustForAbsoluteZoom(box->contentBoxRect().pixelSnappedWidth(), box) : 0;
 }
 
@@ -444,7 +444,7 @@ int HTMLImageElement::height(bool ignorePendingStylesheets)
     else
         document().updateLayout();
 
-    RenderBox* box = renderBox();
+    LayoutBox* box = layoutBox();
     return box ? adjustForAbsoluteZoom(box->contentBoxRect().pixelSnappedHeight(), box) : 0;
 }