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

Source/core/html/HTMLTableElement.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2010, 2011 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
@@ skipping 111 matching lines @@
         if (child->isElementNode() && !child->hasTagName(captionTag) && !child->hasTagName(colgroupTag) && !child->hasTagName(theadTag))
             break;
 
     insertBefore(newFoot, child, es);
 }
 
 PassRefPtr<HTMLElement> HTMLTableElement::createTHead()
 {
     if (HTMLTableSectionElement* existingHead = tHead())
         return existingHead;
-    RefPtr<HTMLTableSectionElement> head = HTMLTableSectionElement::create(theadTag, document());
+    RefPtr<HTMLTableSectionElement> head = HTMLTableSectionElement::create(theadTag, &document());
     setTHead(head, IGNORE_EXCEPTION);
     return head.release();
 }
 
 void HTMLTableElement::deleteTHead()
 {
     removeChild(tHead(), IGNORE_EXCEPTION);
 }
 
 PassRefPtr<HTMLElement> HTMLTableElement::createTFoot()
 {
     if (HTMLTableSectionElement* existingFoot = tFoot())
         return existingFoot;
-    RefPtr<HTMLTableSectionElement> foot = HTMLTableSectionElement::create(tfootTag, document());
+    RefPtr<HTMLTableSectionElement> foot = HTMLTableSectionElement::create(tfootTag, &document());
     setTFoot(foot, IGNORE_EXCEPTION);
     return foot.release();
 }
 
 void HTMLTableElement::deleteTFoot()
 {
     removeChild(tFoot(), IGNORE_EXCEPTION);
 }
 
 PassRefPtr<HTMLElement> HTMLTableElement::createTBody()
 {
-    RefPtr<HTMLTableSectionElement> body = HTMLTableSectionElement::create(tbodyTag, document());
+    RefPtr<HTMLTableSectionElement> body = HTMLTableSectionElement::create(tbodyTag, &document());
     Node* referenceElement = lastBody() ? lastBody()->nextSibling() : 0;
 
     insertBefore(body, referenceElement);
     return body.release();
 }
 
 PassRefPtr<HTMLElement> HTMLTableElement::createCaption()
 {
     if (HTMLTableCaptionElement* existingCaption = caption())
         return existingCaption;
-    RefPtr<HTMLTableCaptionElement> caption = HTMLTableCaptionElement::create(captionTag, document());
+    RefPtr<HTMLTableCaptionElement> caption = HTMLTableCaptionElement::create(captionTag, &document());
     setCaption(caption, IGNORE_EXCEPTION);
     return caption.release();
 }
 
 void HTMLTableElement::deleteCaption()
 {
     removeChild(caption(), IGNORE_EXCEPTION);
 }
 
 HTMLTableSectionElement* HTMLTableElement::lastBody() const
@@ skipping 31 matching lines @@
             lastRow = row;
         }
     }
 
     RefPtr<ContainerNode> parent;
     if (lastRow)
         parent = row ? row->parentNode() : lastRow->parentNode();
     else {
         parent = lastBody();
         if (!parent) {
-            RefPtr<HTMLTableSectionElement> newBody = HTMLTableSectionElement::create(tbodyTag, document());
-            RefPtr<HTMLTableRowElement> newRow = HTMLTableRowElement::create(document());
+            RefPtr<HTMLTableSectionElement> newBody = HTMLTableSectionElement::create(tbodyTag, &document());
+            RefPtr<HTMLTableRowElement> newRow = HTMLTableRowElement::create(&document());
             newBody->appendChild(newRow, es);
             appendChild(newBody.release(), es);
             return newRow.release();
         }
     }
 
-    RefPtr<HTMLTableRowElement> newRow = HTMLTableRowElement::create(document());
+    RefPtr<HTMLTableRowElement> newRow = HTMLTableRowElement::create(&document());
     parent->insertBefore(newRow, row.get(), es);
     return newRow.release();
 }
 
 void HTMLTableElement::deleteRow(int index, ExceptionState& es)
 {
     HTMLTableRowElement* row = 0;
     if (index == -1)
         row = HTMLTableRowsCollection::lastRow(this);
     else {
@@ skipping 70 matching lines @@
     else if (name == borderAttr)
         addPropertyToPresentationAttributeStyle(style, CSSPropertyBorderWidth, parseBorderWidthAttribute(value), CSSPrimitiveValue::CSS_PX);
     else if (name == bordercolorAttr) {
         if (!value.isEmpty())
             addHTMLColorToStyle(style, CSSPropertyBorderColor, value);
     } else if (name == bgcolorAttr)
         addHTMLColorToStyle(style, CSSPropertyBackgroundColor, value);
     else if (name == backgroundAttr) {
         String url = stripLeadingAndTrailingHTMLSpaces(value);
         if (!url.isEmpty())
-            style->setProperty(CSSProperty(CSSPropertyBackgroundImage, CSSImageValue::create(document()->completeURL(url).string())));
+            style->setProperty(CSSProperty(CSSPropertyBackgroundImage, CSSImageValue::create(document().completeURL(url).string())));
     } else if (name == valignAttr) {
         if (!value.isEmpty())
             addPropertyToPresentationAttributeStyle(style, CSSPropertyVerticalAlign, value);
     } else if (name == cellspacingAttr) {
         if (!value.isEmpty())
             addHTMLLengthToStyle(style, CSSPropertyBorderSpacing, value);
     } else if (name == vspaceAttr) {
         addHTMLLengthToStyle(style, CSSPropertyMarginTop, value);
         addHTMLLengthToStyle(style, CSSPropertyMarginBottom, value);
     } else if (name == hspaceAttr) {
@@ skipping 238 matching lines @@
 
 String HTMLTableElement::summary() const
 {
     return getAttribute(summaryAttr);
 }
 
 void HTMLTableElement::addSubresourceAttributeURLs(ListHashSet<KURL>& urls) const
 {
     HTMLElement::addSubresourceAttributeURLs(urls);
 
-    addSubresourceURL(urls, document()->completeURL(getAttribute(backgroundAttr)));
+    addSubresourceURL(urls, document().completeURL(getAttribute(backgroundAttr)));
 }
 
 }