Have Node::document() return a reference instead of a pointer

Source/core/rendering/RenderDeprecatedFlexibleBox.cpp

 /*
  * This file is part of the render object implementation for KHTML.
  *
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003 Apple Computer, Inc.
  *
  * 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
@@ skipping 108 matching lines @@
     Vector<unsigned int> m_sortedOrdinalValues;
     int m_ordinalIteration;
 };
 
 RenderDeprecatedFlexibleBox::RenderDeprecatedFlexibleBox(Element* element)
     : RenderBlock(element)
 {
     setChildrenInline(false); // All of our children must be block-level
     m_stretchingChildren = false;
     if (!isAnonymous()) {
-        const KURL& url = document()->url();
+        const KURL& url = document().url();
         if (url.protocolIs("chrome"))
-            UseCounter::count(document(), UseCounter::DeprecatedFlexboxChrome);
+            UseCounter::count(&document(), UseCounter::DeprecatedFlexboxChrome);
         else if (url.protocolIs("chrome-extension"))
-            UseCounter::count(document(), UseCounter::DeprecatedFlexboxChromeExtension);
+            UseCounter::count(&document(), UseCounter::DeprecatedFlexboxChromeExtension);
         else
-            UseCounter::count(document(), UseCounter::DeprecatedFlexboxWebContent);
+            UseCounter::count(&document(), UseCounter::DeprecatedFlexboxWebContent);
     }
 }
 
 RenderDeprecatedFlexibleBox::~RenderDeprecatedFlexibleBox()
 {
 }
 
 RenderDeprecatedFlexibleBox* RenderDeprecatedFlexibleBox::createAnonymous(Document* document)
 {
     RenderDeprecatedFlexibleBox* renderer = new RenderDeprecatedFlexibleBox(0);
@@ skipping 747 matching lines @@
     }
 
     // So that the computeLogicalHeight in layoutBlock() knows to relayout positioned objects because of
     // a height change, we revert our height back to the intrinsic height before returning.
     if (heightSpecified)
         setHeight(oldHeight);
 }
 
 void RenderDeprecatedFlexibleBox::applyLineClamp(FlexBoxIterator& iterator, bool relayoutChildren)
 {
-    UseCounter::count(document(), UseCounter::LineClamp);
+    UseCounter::count(&document(), UseCounter::LineClamp);
 
     int maxLineCount = 0;
     for (RenderBox* child = iterator.first(); child; child = iterator.next()) {
         if (childDoesNotAffectWidthOrFlexing(child))
             continue;
 
         child->clearOverrideSize();
         if (relayoutChildren || (child->isReplaced() && (child->style()->width().isPercent() || child->style()->height().isPercent()))
             || (child->style()->height().isAuto() && child->isBlockFlow())) {
             child->setChildNeedsLayout(MarkOnlyThis);
@@ skipping 187 matching lines @@
     if (isPseudoElement())
         return "RenderDeprecatedFlexibleBox (generated)";
     if (isAnonymous())
         return "RenderDeprecatedFlexibleBox (generated)";
     if (isRelPositioned())
         return "RenderDeprecatedFlexibleBox (relative positioned)";
     return "RenderDeprecatedFlexibleBox";
 }
 
 } // namespace WebCore