Make InlineBox::renderer() and related subclass methods return reference.

Source/core/rendering/svg/RenderSVGInline.cpp

 /*
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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 38 matching lines @@
 }
 
 RenderSVGInline::RenderSVGInline(Element* element)
     : RenderInline(element)
 {
     setAlwaysCreateLineBoxes();
 }
 
 InlineFlowBox* RenderSVGInline::createInlineFlowBox()
 {
-    InlineFlowBox* box = new SVGInlineFlowBox(this);
+    InlineFlowBox* box = new SVGInlineFlowBox(*this);
     box->setHasVirtualLogicalHeight();
     return box;
 }
 
 FloatRect RenderSVGInline::objectBoundingBox() const
 {
     if (const RenderObject* object = RenderSVGText::locateRenderSVGTextAncestor(this))
         return object->objectBoundingBox();
 
     return FloatRect();
@@ skipping 79 matching lines @@
         RenderInline::removeChild(child);
         return;
     }
     Vector<SVGTextLayoutAttributes*, 2> affectedAttributes;
     textRenderer->subtreeChildWillBeRemoved(child, affectedAttributes);
     RenderInline::removeChild(child);
     textRenderer->subtreeChildWasRemoved(affectedAttributes);
 }
 
 }