Pass implementation object to supplemental classes by reference

Source/core/rendering/RenderInline.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 331 matching lines @@
 {
     // Create a clone of this inline.
     RenderInline* cloneInline = clone();
     cloneInline->setContinuation(oldCont);
 
     // If we're splitting the inline containing the fullscreened element,
     // |beforeChild| may be the renderer for the fullscreened element. However,
     // that renderer is wrapped in a RenderFullScreen, so |this| is not its
     // parent. Since the splitting logic expects |this| to be the parent, set
     // |beforeChild| to be the RenderFullScreen.
-    if (FullscreenElementStack* fullscreen = FullscreenElementStack::fromIfExists(&document())) {
+    if (FullscreenElementStack* fullscreen = FullscreenElementStack::fromIfExists(document())) {
         const Element* fullScreenElement = fullscreen->webkitCurrentFullScreenElement();
         if (fullScreenElement && beforeChild && beforeChild->node() == fullScreenElement)
             beforeChild = fullscreen->fullScreenRenderer();
     }
 
     // Now take all of the children from beforeChild to the end and remove
     // them from |this| and place them in the clone.
     RenderObject* o = beforeChild;
     while (o) {
         RenderObject* tmp = o;
@@ skipping 1209 matching lines @@
         container = this;
 
     FloatPoint absPos = container->localToAbsolute();
     region.bounds.setX(absPos.x() + region.bounds.x());
     region.bounds.setY(absPos.y() + region.bounds.y());
 
     regions.append(region);
 }
 
 } // namespace WebCore