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

Source/core/loader/FormSubmission.cpp

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 123 matching lines @@
     , m_boundary(boundary)
     , m_lockHistory(lockHistory)
     , m_event(event)
 {
 }
 
 PassRefPtr<FormSubmission> FormSubmission::create(HTMLFormElement* form, const Attributes& attributes, PassRefPtr<Event> event, bool lockHistory, FormSubmissionTrigger trigger)
 {
     ASSERT(form);
 
-    HTMLFormControlElement* submitButton = 0;
+    Handle<HTMLFormControlElement> submitButton;
     if (event && event->target()) {
         for (Node* node = event->target()->toNode(); node; node = node->parentNode()) {
             if (node->isElementNode() && toElement(node)->isFormControlElement()) {
-                submitButton = static_cast<HTMLFormControlElement*>(node);
+                submitButton = Handle<HTMLFormControlElement>(static_cast<HTMLFormControlElement*>(node));
                 break;
             }
         }
     }
 
     FormSubmission::Attributes copiedAttributes;
     copiedAttributes.copyFrom(attributes);
     if (submitButton) {
         String attributeValue;
         if (!(attributeValue = submitButton->getAttribute(formactionAttr)).isNull())
@@ skipping 24 matching lines @@
     RefPtr<DOMFormData> domFormData = DOMFormData::create(dataEncoding.encodingForFormSubmission());
     Vector<pair<String, String> > formValues;
 
     bool containsPasswordData = false;
     for (unsigned i = 0; i < form->associatedElements().size(); ++i) {
         FormAssociatedElement* control = form->associatedElements()[i];
         HTMLElement* element = toHTMLElement(control);
         if (!element->isDisabledFormControl())
             control->appendFormData(*domFormData, isMultiPartForm);
         if (element->hasLocalName(inputTag)) {
-            HTMLInputElement* input = static_cast<HTMLInputElement*>(control);
+            Handle<HTMLInputElement> input(static_cast<HTMLInputElement*>(control));
             if (input->isTextField()) {
                 formValues.append(pair<String, String>(input->name().string(), input->value()));
                 input->addSearchResult();
             }
             if (input->isPasswordField() && !input->value().isEmpty())
                 containsPasswordData = true;
         }
     }
 
     RefPtr<FormData> formData;
@@ skipping 45 matching lines @@
             frameRequest.resourceRequest().setHTTPContentType(m_contentType);
         else
             frameRequest.resourceRequest().setHTTPContentType(m_contentType + "; boundary=" + m_boundary);
     }
 
     frameRequest.resourceRequest().setURL(requestURL());
     FrameLoader::addHTTPOriginIfNeeded(frameRequest.resourceRequest(), m_origin);
 }
 
 }