Catch up ruby and its tag omission rule changes in HTML5 CR Feb 2014

Source/core/html/parser/HTMLTreeBuilder.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011, 2014 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 849 matching lines @@
     }
     if (token->name() == optgroupTag || token->name() == optionTag) {
         if (m_tree.currentStackItem()->hasTagName(optionTag)) {
             AtomicHTMLToken endOption(HTMLToken::EndTag, optionTag.localName());
             processEndTag(&endOption);
         }
         m_tree.reconstructTheActiveFormattingElements();
         m_tree.insertHTMLElement(token);
         return;
     }
-    if (token->name() == rpTag || token->name() == rtTag) {
+    if (token->name() == rbTag || token->name() == rtcTag) {
         if (m_tree.openElements()->inScope(rubyTag.localName())) {
             m_tree.generateImpliedEndTags();
             if (!m_tree.currentStackItem()->hasTagName(rubyTag))
                 parseError(token);
         }
         m_tree.insertHTMLElement(token);
         return;
     }
+    if (token->name() == rtTag || token->name() == rpTag) {
+        if (m_tree.openElements()->inScope(rubyTag.localName())) {
+            m_tree.generateImpliedEndTagsWithExclusion(rtcTag.localName());
+            if (!m_tree.currentStackItem()->hasTagName(rubyTag) && !m_tree.currentStackItem()->hasTagName(rtcTag))
+                parseError(token);
+        }
+        m_tree.insertHTMLElement(token);
+        return;
+    }
     if (token->name() == MathMLNames::mathTag.localName()) {
         m_tree.reconstructTheActiveFormattingElements();
         adjustMathMLAttributes(token);
         adjustForeignAttributes(token);
         m_tree.insertForeignElement(token, MathMLNames::mathmlNamespaceURI);
         return;
     }
     if (token->name() == SVGNames::svgTag.localName()) {
         m_tree.reconstructTheActiveFormattingElements();
         adjustSVGAttributes(token);
@@ skipping 1907 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 blink