Revert "Move innerHTML and outerHTML to Element"

Source/core/html/parser/HTMLTreeBuilder.cpp

Index: Source/core/html/parser/HTMLTreeBuilder.cpp
diff --git a/Source/core/html/parser/HTMLTreeBuilder.cpp b/Source/core/html/parser/HTMLTreeBuilder.cpp
index 0553f7384f9054e234ed2df991d0f728c1e81317..01f501a0bf3a03a90ffd65d24d748fed56d34f5c 100644
--- a/Source/core/html/parser/HTMLTreeBuilder.cpp
+++ b/Source/core/html/parser/HTMLTreeBuilder.cpp
@@ -376,13 +376,10 @@ void HTMLTreeBuilder::constructTree(AtomicHTMLToken* token)
         processToken(token);
 
     if (m_parser->tokenizer()) {
-        bool inForeignContent = false;
-        if (!m_tree.isEmpty()) {
-            RefPtr<HTMLStackItem> adjustedCurrentNode = adjustedCurrentStackItem();
-            inForeignContent = !adjustedCurrentNode->isInHTMLNamespace()
-                && !HTMLElementStack::isHTMLIntegrationPoint(adjustedCurrentNode.get())
-                && !HTMLElementStack::isMathMLTextIntegrationPoint(adjustedCurrentNode.get());
-        }
+        bool inForeignContent = !m_tree.isEmpty()
+            && !m_tree.currentStackItem()->isInHTMLNamespace()
+            && !HTMLElementStack::isHTMLIntegrationPoint(m_tree.currentStackItem())
+            && !HTMLElementStack::isMathMLTextIntegrationPoint(m_tree.currentStackItem());
 
         m_parser->tokenizer()->setForceNullCharacterReplacement(m_insertionMode == TextMode || inForeignContent);
         m_parser->tokenizer()->setShouldAllowCDATA(inForeignContent);
@@ -1002,16 +999,6 @@ bool HTMLTreeBuilder::processColgroupEndTagForInColumnGroup()
     return true;
 }
 
-// http://www.whatwg.org/specs/web-apps/current-work/#adjusted-current-node
-PassRefPtr<HTMLStackItem> HTMLTreeBuilder::adjustedCurrentStackItem() const
-{
-    ASSERT(!m_tree.isEmpty());
-    if (isParsingFragment() && m_tree.openElements()->hasOnlyOneElement())
-        return HTMLStackItem::create(m_fragmentContext.contextElement(), HTMLStackItem::ItemForContextElement);
-
-    return m_tree.currentStackItem();
-}
-
 // http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#close-the-cell
 void HTMLTreeBuilder::closeTheCell()
 {
@@ -2692,11 +2679,10 @@ bool HTMLTreeBuilder::shouldProcessTokenInForeignContent(AtomicHTMLToken* token)
 {
     if (m_tree.isEmpty())
         return false;
-    RefPtr<HTMLStackItem> adjustedCurrentNode = adjustedCurrentStackItem();
-
-    if (adjustedCurrentNode->isInHTMLNamespace())
+    HTMLStackItem* item = m_tree.currentStackItem();
+    if (item->isInHTMLNamespace())
         return false;
-    if (HTMLElementStack::isMathMLTextIntegrationPoint(adjustedCurrentNode.get())) {
+    if (HTMLElementStack::isMathMLTextIntegrationPoint(item)) {
         if (token->type() == HTMLToken::StartTag
             && token->name() != MathMLNames::mglyphTag
             && token->name() != MathMLNames::malignmarkTag)
@@ -2704,11 +2690,11 @@ bool HTMLTreeBuilder::shouldProcessTokenInForeignContent(AtomicHTMLToken* token)
         if (token->type() == HTMLToken::Character)
             return false;
     }
-    if (adjustedCurrentNode->hasTagName(MathMLNames::annotation_xmlTag)
+    if (item->hasTagName(MathMLNames::annotation_xmlTag)
         && token->type() == HTMLToken::StartTag
         && token->name() == SVGNames::svgTag)
         return false;
-    if (HTMLElementStack::isHTMLIntegrationPoint(adjustedCurrentNode.get())) {
+    if (HTMLElementStack::isHTMLIntegrationPoint(item)) {
         if (token->type() == HTMLToken::StartTag)
             return false;
         if (token->type() == HTMLToken::Character)
@@ -2730,7 +2716,6 @@ void HTMLTreeBuilder::processTokenInForeignContent(AtomicHTMLToken* token)
     }
 
     m_tree.flush();
-    RefPtr<HTMLStackItem> adjustedCurrentNode = adjustedCurrentStackItem();
 
     switch (token->type()) {
     case HTMLToken::Uninitialized:
@@ -2785,7 +2770,7 @@ void HTMLTreeBuilder::processTokenInForeignContent(AtomicHTMLToken* token)
             processStartTag(token);
             return;
         }
-        const AtomicString& currentNamespace = adjustedCurrentNode->namespaceURI();
+        const AtomicString& currentNamespace = m_tree.currentStackItem()->namespaceURI();
         if (currentNamespace == MathMLNames::mathmlNamespaceURI)
             adjustMathMLAttributes(token);
         if (currentNamespace == SVGNames::svgNamespaceURI) {
@@ -2797,7 +2782,7 @@ void HTMLTreeBuilder::processTokenInForeignContent(AtomicHTMLToken* token)
         break;
     }
     case HTMLToken::EndTag: {
-        if (adjustedCurrentNode->namespaceURI() == SVGNames::svgNamespaceURI)
+        if (m_tree.currentStackItem()->namespaceURI() == SVGNames::svgNamespaceURI)
             adjustSVGTagNameCase(token);
 
         if (token->name() == SVGNames::scriptTag && m_tree.currentStackItem()->hasTagName(SVGNames::scriptTag)) {