[oilpan] Completely move HTMLFormControlElement's hierarchy to the managed heap

Source/core/html/HTMLFormControlElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 85 matching lines @@
     setAttribute(formmethodAttr, value);
 }
 
 bool HTMLFormControlElement::formNoValidate() const
 {
     return fastHasAttribute(formnovalidateAttr);
 }
 
 void HTMLFormControlElement::updateAncestorDisabledState() const
 {
-    HTMLFieldSetElement* fieldSetAncestor = 0;
+    Handle<HTMLFieldSetElement> fieldSetAncestor;
     ContainerNode* legendAncestor = 0;
     for (ContainerNode* ancestor = parentNode(); ancestor; ancestor = ancestor->parentNode()) {
         if (!legendAncestor && ancestor->hasTagName(legendTag))
             legendAncestor = ancestor;
         if (ancestor->hasTagName(fieldsetTag)) {
-            fieldSetAncestor = static_cast<HTMLFieldSetElement*>(ancestor);
+            fieldSetAncestor = Handle<HTMLFieldSetElement>(static_cast<HTMLFieldSetElement*>(ancestor));
             break;
         }
     }
     m_ancestorDisabledState = (fieldSetAncestor && fieldSetAncestor->isDisabledFormControl() && !(legendAncestor && legendAncestor == fieldSetAncestor->legend())) ? AncestorDisabledStateDisabled : AncestorDisabledStateEnabled;
 }
 
 void HTMLFormControlElement::ancestorDisabledStateWasChanged()
 {
     m_ancestorDisabledState = AncestorDisabledStateUnknown;
     disabledAttributeChanged();
@@ skipping 40 matching lines @@
 }
 
 void HTMLFormControlElement::requiredAttributeChanged()
 {
     setNeedsValidityCheck();
     // Style recalculation is needed because style selectors may include
     // :required and :optional pseudo-classes.
     setNeedsStyleRecalc();
 }
 
-static bool shouldAutofocus(HTMLFormControlElement* element)
+static bool shouldAutofocus(Handle<HTMLFormControlElement> element)
 {
     if (!element->fastHasAttribute(autofocusAttr))
         return false;
     if (!element->renderer())
         return false;
     if (element->document()->ignoreAutofocus())
         return false;
     if (element->document()->isSandboxed(SandboxAutomaticFeatures)) {
         // FIXME: This message should be moved off the console once a solution to https://bugs.webkit.org/show_bug.cgi?id=103274 exists.
         element->document()->addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked autofocusing on a form control because the form's frame is sandboxed and the 'allow-scripts' permission is not set.");
         return false;
     }
     if (element->hasAutofocused())
         return false;
 
     // FIXME: Should this set of hasTagName checks be replaced by a
     // virtual member function?
     if (element->hasTagName(inputTag))
-        return !static_cast<HTMLInputElement*>(element)->isInputTypeHidden();
+        return !Handle<HTMLInputElement>::cast(element)->isInputTypeHidden();
     if (element->hasTagName(selectTag))
         return true;
     if (element->hasTagName(keygenTag))
         return true;
     if (element->hasTagName(buttonTag))
         return true;
     if (element->hasTagName(textareaTag))
         return true;
 
     return false;
@@ skipping 10 matching lines @@
     PostAttachCallbackDisabler disabler(this);
 
     HTMLElement::attach();
 
     // The call to updateFromElement() needs to go after the call through
     // to the base class's attach() because that can sometimes do a close
     // on the renderer.
     if (renderer())
         renderer()->updateFromElement();
 
-    if (shouldAutofocus(this)) {
+    if (shouldAutofocus(Handle<HTMLFormControlElement>(this))) {
         setAutofocused();
         ref();
         queuePostAttachCallback(focusPostAttach, this);
     }
 }
 
 void HTMLFormControlElement::didMoveToNewDocument(Document* oldDocument)
 {
     FormAssociatedElement::didMoveToNewDocument(oldDocument);
     HTMLElement::didMoveToNewDocument(oldDocument);
@@ skipping 157 matching lines @@
 
 void HTMLFormControlElement::updateVisibleValidationMessage()
 {
     Page* page = document()->page();
     if (!page)
         return;
     String message;
     if (renderer() && willValidate())
         message = validationMessage().stripWhiteSpace();
     if (!m_validationMessage)
-        m_validationMessage = ValidationMessage::create(this);
+        m_validationMessage = ValidationMessage::create(Handle<HTMLFormControlElement>(this));
     m_validationMessage->updateValidationMessage(message);
 }
 
 void HTMLFormControlElement::hideVisibleValidationMessage()
 {
     if (m_validationMessage)
         m_validationMessage->requestToHideMessage();
 }
 
 bool HTMLFormControlElement::checkValidity(Vector<RefPtr<FormAssociatedElement> >* unhandledInvalidControls)
@@ skipping 54 matching lines @@
 HTMLFormElement* HTMLFormControlElement::virtualForm() const
 {
     return FormAssociatedElement::form();
 }
 
 bool HTMLFormControlElement::isDefaultButtonForForm() const
 {
     return isSuccessfulSubmitButton() && form() && form()->defaultButton() == this;
 }
 
-HTMLFormControlElement* HTMLFormControlElement::enclosingFormControlElement(Node* node)
+Result<HTMLFormControlElement> HTMLFormControlElement::enclosingFormControlElement(Node* node)
 {
     for (; node; node = node->parentNode()) {
         if (node->isElementNode() && toElement(node)->isFormControlElement())
-            return static_cast<HTMLFormControlElement*>(node);
+            return Handle<HTMLFormControlElement>(static_cast<HTMLFormControlElement*>(node));
     }
-    return 0;
+    return nullptr;
 }
 
 void HTMLFormControlElement::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM);
     LabelableElement::reportMemoryUsage(memoryObjectInfo);
     info.addMember(m_validationMessage, "validationMessage");
 }
 
+void HTMLFormControlElement::acceptHeapVisitor(Visitor* visitor) const
+{
+    LabelableElement::acceptHeapVisitor(visitor);
+}
+
 } // namespace Webcore