Oilpan: Prepare to move FormSubmission to Oilpan 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 142 matching lines @@
     , m_event(event)
 {
 }
 
 inline FormSubmission::FormSubmission(const String& result)
     : m_method(DialogMethod)
     , m_result(result)
 {
 }
 
-PassRefPtr<FormSubmission> FormSubmission::create(HTMLFormElement* form, const Attributes& attributes, PassRefPtrWillBeRawPtr<Event> event, FormSubmissionTrigger trigger)
+PassRefPtrWillBeRawPtr<FormSubmission> FormSubmission::create(HTMLFormElement* form, const Attributes& attributes, PassRefPtrWillBeRawPtr<Event> event, FormSubmissionTrigger trigger)
 {
     ASSERT(form);
 
     HTMLFormControlElement* submitButton = 0;
     if (event && event->target()) {
         for (Node* node = event->target()->toNode(); node; node = node->parentOrShadowHostNode()) {
             if (node->isElementNode() && toElement(node)->isFormControlElement()) {
                 submitButton = toHTMLFormControlElement(node);
                 break;
             }
         }
     }
 
     FormSubmission::Attributes copiedAttributes;
     copiedAttributes.copyFrom(attributes);
     if (submitButton) {
         AtomicString attributeValue;
         if (!(attributeValue = submitButton->fastGetAttribute(formactionAttr)).isNull())
             copiedAttributes.parseAction(form->document(), attributeValue);
         if (!(attributeValue = submitButton->fastGetAttribute(formenctypeAttr)).isNull())
             copiedAttributes.updateEncodingType(attributeValue);
         if (!(attributeValue = submitButton->fastGetAttribute(formmethodAttr)).isNull())
             copiedAttributes.updateMethodType(attributeValue);
         if (!(attributeValue = submitButton->fastGetAttribute(formtargetAttr)).isNull())
             copiedAttributes.setTarget(attributeValue);
     }
 
     if (copiedAttributes.method() == DialogMethod) {
         if (submitButton)
-            return adoptRef(new FormSubmission(submitButton->resultForDialogSubmit()));
-        return adoptRef(new FormSubmission(""));
+            return adoptRefWillBeNoop(new FormSubmission(submitButton->resultForDialogSubmit()));
+        return adoptRefWillBeNoop(new FormSubmission(""));
     }
 
     Document& document = form->document();
     KURL actionURL = copiedAttributes.action().isEmpty() ? document.url() : copiedAttributes.action();
     bool isMailtoForm = actionURL.protocolIs("mailto");
     bool isMultiPartForm = false;
     AtomicString encodingType = copiedAttributes.encodingType();
 
     if (copiedAttributes.method() == PostMethod) {
         isMultiPartForm = copiedAttributes.isMultiPartForm();
@@ skipping 30 matching lines @@
         if (copiedAttributes.method() == PostMethod && isMailtoForm) {
             // Convert the form data into a string that we put into the URL.
             appendMailtoPostFormDataToURL(actionURL, *formData, encodingType);
             formData = FormData::create();
         }
     }
 
     formData->setIdentifier(generateFormDataIdentifier());
     formData->setContainsPasswordData(containsPasswordData);
     AtomicString targetOrBaseTarget = copiedAttributes.target().isEmpty() ? document.baseTarget() : copiedAttributes.target();
-    return adoptRef(new FormSubmission(copiedAttributes.method(), actionURL, targetOrBaseTarget, encodingType, FormState::create(*form, trigger), formData.release(), boundary, event));
+    return adoptRefWillBeNoop(new FormSubmission(copiedAttributes.method(), actionURL, targetOrBaseTarget, encodingType, FormState::create(*form, trigger), formData.release(), boundary, event));
+}
+
+void FormSubmission::trace(Visitor* visitor)
+{
+    visitor->trace(m_formState);
+    visitor->trace(m_event);
 }
 
 KURL FormSubmission::requestURL() const
 {
     if (m_method == FormSubmission::PostMethod)
         return m_action;
 
     KURL requestURL(m_action);
     requestURL.setQuery(m_formData->flattenToString());
     return requestURL;
@@ skipping 16 matching lines @@
             frameRequest.resourceRequest().setHTTPContentType(m_contentType);
         else
             frameRequest.resourceRequest().setHTTPContentType(m_contentType + "; boundary=" + m_boundary);
     }
 
     frameRequest.resourceRequest().setURL(requestURL());
     FrameLoader::addHTTPOriginIfNeeded(frameRequest.resourceRequest(), AtomicString(m_origin));
 }
 
 }