Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

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 169 matching lines @@
         if (child->hasTagName(tbodyTag))
             return toHTMLTableSectionElement(child);
     }
     return 0;
 }
 
 PassRefPtr<HTMLElement> HTMLTableElement::insertRow(int index, ExceptionState& exceptionState)
 {
     if (index < -1) {
         exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is less than -1.");
-        return 0;
+        return nullptr;
     }
 
     RefPtr<Node> protectFromMutationEvents(this);
 
-    RefPtr<HTMLTableRowElement> lastRow = 0;
-    RefPtr<HTMLTableRowElement> row = 0;
+    RefPtr<HTMLTableRowElement> lastRow = nullptr;
+    RefPtr<HTMLTableRowElement> row = nullptr;
     if (index == -1)
         lastRow = HTMLTableRowsCollection::lastRow(this);
     else {
         for (int i = 0; i <= index; ++i) {
             row = HTMLTableRowsCollection::rowAfter(this, lastRow.get());
             if (!row) {
                 if (i != index) {
                     exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is greater than the number of rows in the table (" + String::number(i) + ").");
-                    return 0;
+                    return nullptr;
                 }
                 break;
             }
             lastRow = row;
         }
     }
 
     RefPtr<ContainerNode> parent;
     if (lastRow)
         parent = row ? row->parentNode() : lastRow->parentNode();
@@ skipping 173 matching lines @@
         if (!value.isEmpty())
             m_padding = max(0, value.toInt());
         else
             m_padding = 1;
     } else if (name == colsAttr) {
         // ###
     } else
         HTMLElement::parseAttribute(name, value);
 
     if (bordersBefore != cellBorders() || oldPadding != m_padding) {
-        m_sharedCellStyle = 0;
+        m_sharedCellStyle = nullptr;
         setNeedsTableStyleRecalc();
     }
 }
 
 static PassRefPtr<StylePropertySet> createBorderStyle(CSSValueID value)
 {
     RefPtr<MutableStylePropertySet> style = MutableStylePropertySet::create();
     style->setProperty(CSSPropertyBorderTopStyle, value);
     style->setProperty(CSSPropertyBorderBottomStyle, value);
     style->setProperty(CSSPropertyBorderLeftStyle, value);
@@ skipping 143 matching lines @@
 {
     return getAttribute(rulesAttr);
 }
 
 const AtomicString& HTMLTableElement::summary() const
 {
     return getAttribute(summaryAttr);
 }
 
 }