Use new is*Element() helper functions more in HTML code

Source/core/html/parser/HTMLTreeBuilder.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 119 matching lines @@
 // http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#formatting
 static bool isFormattingTag(const AtomicString& tagName)
 {
     return tagName == aTag || isNonAnchorFormattingTag(tagName);
 }
 
 static HTMLFormElement* closestFormAncestor(Element* element)
 {
     ASSERT(isMainThread());
     while (element) {
-        if (element->hasTagName(formTag))
+        if (isHTMLFormElement(*element))
             return toHTMLFormElement(element);
         ContainerNode* parent = element->parentNode();
         if (!parent || !parent->isElementNode())
             return 0;
         element = toElement(parent);
     }
     return 0;
 }
 
 class HTMLTreeBuilder::CharacterTokenBuffer {
@@ skipping 153 matching lines @@
     ASSERT(isMainThread());
     // FIXME: This assertion will become invalid if <http://webkit.org/b/60316> is fixed.
     ASSERT(contextElement);
     if (contextElement) {
         // Steps 4.2-4.6 of the HTML5 Fragment Case parsing algorithm:
         // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-end.html#fragment-case
         // For efficiency, we skip step 4.2 ("Let root be a new html element with no attributes")
         // and instead use the DocumentFragment as a root node.
         m_tree.openElements()->pushRootNode(HTMLStackItem::create(fragment, HTMLStackItem::ItemForDocumentFragmentNode));
 
-        if (contextElement->hasTagName(templateTag))
+        if (isHTMLTemplateElement(*contextElement))
             m_templateInsertionModes.append(TemplateContentsMode);
 
         resetInsertionModeAppropriately();
         m_tree.setForm(closestFormAncestor(contextElement));
     }
 }
 
 HTMLTreeBuilder::~HTMLTreeBuilder()
 {
 }
@@ skipping 580 matching lines @@
     m_tree.activeFormattingElements()->appendMarker();
     m_tree.insertHTMLElement(token);
     m_templateInsertionModes.append(TemplateContentsMode);
     setInsertionMode(TemplateContentsMode);
 }
 
 bool HTMLTreeBuilder::processTemplateEndTag(AtomicHTMLToken* token)
 {
     ASSERT(token->name() == templateTag.localName());
     if (!m_tree.openElements()->hasTemplateInHTMLScope()) {
-        ASSERT(m_templateInsertionModes.isEmpty() || (m_templateInsertionModes.size() == 1 && m_fragmentContext.contextElement()->hasTagName(templateTag)));
+        ASSERT(m_templateInsertionModes.isEmpty() || (m_templateInsertionModes.size() == 1 && isHTMLTemplateElement(m_fragmentContext.contextElement())));
         parseError(token);
         return false;
     }
     m_tree.generateImpliedEndTags();
     if (!m_tree.currentStackItem()->hasTagName(templateTag))
         parseError(token);
     m_tree.openElements()->popUntilPopped(templateTag);
     m_tree.activeFormattingElements()->clearToLastMarker();
     m_templateInsertionModes.removeLast();
     resetInsertionModeAppropriately();
     return true;
 }
 
 bool HTMLTreeBuilder::processEndOfFileForInTemplateContents(AtomicHTMLToken* token)
 {
     AtomicHTMLToken endTemplate(HTMLToken::EndTag, templateTag.localName());
     if (!processTemplateEndTag(&endTemplate))
         return false;
 
     processEndOfFile(token);
     return true;
 }
 
 bool HTMLTreeBuilder::processColgroupEndTagForInColumnGroup()
 {
-    if (m_tree.currentIsRootNode() || m_tree.currentNode()->hasTagName(templateTag)) {
+    if (m_tree.currentIsRootNode() || isHTMLTemplateElement(*m_tree.currentNode())) {
         ASSERT(isParsingFragmentOrTemplateContents());
         // FIXME: parse error
         return false;
     }
     m_tree.openElements()->pop();
     setInsertionMode(InTableMode);
     return true;
 }
 
 // http://www.whatwg.org/specs/web-apps/current-work/#adjusted-current-node
@@ skipping 1496 matching lines @@
         return;
     case AfterFramesetMode:
     case AfterAfterFramesetMode:
         ASSERT(insertionMode() == AfterFramesetMode || insertionMode() == AfterAfterFramesetMode);
         break;
     case InColumnGroupMode:
         if (m_tree.currentIsRootNode()) {
             ASSERT(isParsingFragment());
             return; // FIXME: Should we break here instead of returning?
         }
-        ASSERT(m_tree.currentNode()->hasTagName(colgroupTag) || m_tree.currentNode()->hasTagName(templateTag));
+        ASSERT(m_tree.currentNode()->hasTagName(colgroupTag) || isHTMLTemplateElement(m_tree.currentNode()));
         processColgroupEndTagForInColumnGroup();
         // Fall through
     case InFramesetMode:
     case InTableMode:
     case InTableBodyMode:
     case InSelectInTableMode:
     case InSelectMode:
         ASSERT(insertionMode() == InSelectMode || insertionMode() == InSelectInTableMode || insertionMode() == InTableMode || insertionMode() == InFramesetMode || insertionMode() == InTableBodyMode || insertionMode() == InColumnGroupMode);
         if (m_tree.currentNode() != m_tree.openElements()->rootNode())
             parseError(token);
@@ skipping 320 matching lines @@
     ASSERT(m_isAttached);
     // Warning, this may detach the parser. Do not do anything else after this.
     m_tree.finishedParsing();
 }
 
 void HTMLTreeBuilder::parseError(AtomicHTMLToken*)
 {
 }
 
 } // namespace WebCore