Sync the HTMLTableElement return types with the spec

third_party/WebKit/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 99 matching lines @@
 
     HTMLElement* child;
     for (child = Traversal<HTMLElement>::firstChild(*this); child; child = Traversal<HTMLElement>::nextSibling(*child)) {
         if (!child->hasTagName(captionTag) && !child->hasTagName(colgroupTag) && !child->hasTagName(theadTag))
             break;
     }
 
     insertBefore(newFoot, child, exceptionState);
 }
 
-PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableElement::createTHead()
+PassRefPtrWillBeRawPtr<HTMLTableSectionElement> HTMLTableElement::createTHead()
 {
     if (HTMLTableSectionElement* existingHead = tHead())
         return existingHead;
     RefPtrWillBeRawPtr<HTMLTableSectionElement> head = HTMLTableSectionElement::create(theadTag, document());
     setTHead(head, IGNORE_EXCEPTION);
     return head.release();
 }
 
 void HTMLTableElement::deleteTHead()
 {
     removeChild(tHead(), IGNORE_EXCEPTION);
 }
 
-PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableElement::createTFoot()
+PassRefPtrWillBeRawPtr<HTMLTableSectionElement> HTMLTableElement::createTFoot()
 {
     if (HTMLTableSectionElement* existingFoot = tFoot())
         return existingFoot;
     RefPtrWillBeRawPtr<HTMLTableSectionElement> foot = HTMLTableSectionElement::create(tfootTag, document());
     setTFoot(foot, IGNORE_EXCEPTION);
     return foot.release();
 }
 
 void HTMLTableElement::deleteTFoot()
 {
     removeChild(tFoot(), IGNORE_EXCEPTION);
 }
 
-PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableElement::createTBody()
+PassRefPtrWillBeRawPtr<HTMLTableSectionElement> HTMLTableElement::createTBody()
 {
     RefPtrWillBeRawPtr<HTMLTableSectionElement> body = HTMLTableSectionElement::create(tbodyTag, document());
     Node* referenceElement = lastBody() ? lastBody()->nextSibling() : 0;
 
     insertBefore(body, referenceElement);
     return body.release();
 }
 
-PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableElement::createCaption()
+PassRefPtrWillBeRawPtr<HTMLTableCaptionElement> HTMLTableElement::createCaption()
 {
     if (HTMLTableCaptionElement* existingCaption = caption())
         return existingCaption;
     RefPtrWillBeRawPtr<HTMLTableCaptionElement> caption = HTMLTableCaptionElement::create(document());
     setCaption(caption, IGNORE_EXCEPTION);
     return caption.release();
 }
 
 void HTMLTableElement::deleteCaption()
 {
     removeChild(caption(), IGNORE_EXCEPTION);
 }
 
 HTMLTableSectionElement* HTMLTableElement::lastBody() const
 {
     return toHTMLTableSectionElement(Traversal<HTMLElement>::lastChild(*this, HasHTMLTagName(tbodyTag)));
 }
 
-PassRefPtrWillBeRawPtr<HTMLElement> HTMLTableElement::insertRow(int index, ExceptionState& exceptionState)
+PassRefPtrWillBeRawPtr<HTMLTableRowElement> HTMLTableElement::insertRow(int index, ExceptionState& exceptionState)
 {
     if (index < -1) {
         exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is less than -1.");
         return nullptr;
     }
 
     RefPtrWillBeRawPtr<Node> protectFromMutationEvents(this);
 
     RefPtrWillBeRawPtr<HTMLTableRowElement> lastRow = nullptr;
     RefPtrWillBeRawPtr<HTMLTableRowElement> row = nullptr;
@@ skipping 372 matching lines @@
     return getAttribute(summaryAttr);
 }
 
 DEFINE_TRACE(HTMLTableElement)
 {
     visitor->trace(m_sharedCellStyle);
     HTMLElement::trace(visitor);
 }
 
 }