Mixed Content: Make MixedContentChecker completely static.

Source/core/html/HTMLFormElement.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, 2008, 2009 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 424 matching lines @@
     if (!targetFrame) {
         if (!LocalDOMWindow::allowPopUp(*document().frame()) && !UserGestureIndicator::processingUserGesture())
             return;
         targetFrame = document().frame();
     } else {
         submission->clearTarget();
     }
     if (!targetFrame->page())
         return;
 
-    if (MixedContentChecker::isMixedContent(document().securityOrigin(), submission->action())) {
+    UseCounter::count(document(), UseCounter::FormsSubmitted);
+    if (MixedContentChecker::checkFormAction(document().frame(), submission->action()))
         UseCounter::count(document(), UseCounter::MixedContentFormsSubmitted);
-        if (!document().frame()->loader().mixedContentChecker()->canSubmitToInsecureForm(document().securityOrigin(), submission->action()))
-            return;
-    } else {
-        UseCounter::count(document(), UseCounter::FormsSubmitted);
-    }
 
     submission->setReferrer(Referrer(document().outgoingReferrer(), document().referrerPolicy()));
     submission->setOrigin(document().outgoingOrigin());
 
     targetFrame->navigationScheduler().scheduleFormSubmission(submission);
 }
 
 void HTMLFormElement::reset()
 {
     LocalFrame* frame = document().frame();
@@ skipping 53 matching lines @@
     m_pendingAutocompleteEventsQueue->enqueueEvent(event.release());
 }
 
 void HTMLFormElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (name == actionAttr) {
         m_attributes.parseAction(value);
         // If the new action attribute is pointing to insecure "action" location from a secure page
         // it is marked as "passive" mixed content.
         KURL actionURL = document().completeURL(m_attributes.action().isEmpty() ? document().url().string() : m_attributes.action());
-        if (document().frame() && MixedContentChecker::isMixedContent(document().securityOrigin(), actionURL))
-            document().frame()->loader().mixedContentChecker()->canSubmitToInsecureForm(document().securityOrigin(), actionURL);
+        MixedContentChecker::checkFormAction(document().frame(), actionURL);
     } else if (name == targetAttr)
         m_attributes.setTarget(value);
     else if (name == methodAttr)
         m_attributes.updateMethodType(value);
     else if (name == enctypeAttr)
         m_attributes.updateEncodingType(value);
     else if (name == accept_charsetAttr)
         m_attributes.setAcceptCharset(value);
     else if (name == onautocompleteAttr)
         setAttributeEventListener(EventTypeNames::autocomplete, createAttributeEventListener(this, name, value, eventParameterName()));
@@ skipping 307 matching lines @@
 }
 
 void HTMLFormElement::setDemoted(bool demoted)
 {
     if (demoted)
         UseCounter::count(document(), UseCounter::DemotedFormElement);
     m_wasDemoted = demoted;
 }
 
 } // namespace