Remove support for multipart/x-mixed-replace

Source/core/loader/FrameLoader.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008 Alp Toker <alp@atoker.com>
  * Copyright (C) Research In Motion Limited 2009. All rights reserved.
  * Copyright (C) 2011 Kris Jordan <krisjordan@gmail.com>
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 959 matching lines @@
     m_progressTracker->progressStarted();
     m_client->dispatchDidStartProvisionalLoad();
 
     // Notify accessibility.
     if (AXObjectCache* cache = m_frame->document()->existingAXObjectCache()) {
         AXObjectCache::AXLoadingEvent loadingEvent = loadType() == FrameLoadTypeReload ? AXObjectCache::AXLoadingReloaded : AXObjectCache::AXLoadingStarted;
         cache->frameLoadingEventNotification(m_frame, loadingEvent);
     }
 }
 
-void FrameLoader::setupForReplace()
-{
-    setState(FrameStateProvisional);
-    m_provisionalDocumentLoader = m_documentLoader;
-    m_documentLoader = 0;
-    detachChildren();
-}
-
 void FrameLoader::loadFrameRequest(const FrameLoadRequest& request, bool lockBackForwardList,
     PassRefPtr<Event> event, PassRefPtr<FormState> formState, ShouldSendReferrer shouldSendReferrer)
 {    
     // Protect frame from getting blown away inside dispatchBeforeLoadEvent in loadWithDocumentLoader.
     RefPtr<Frame> protect(m_frame);
 
     KURL url = request.resourceRequest().url();
 
     ASSERT(m_frame->document());
     if (!request.requester()->canDisplay(url)) {
@@ skipping 1549 matching lines @@
     FloatRect newWindowRect = DOMWindow::adjustWindowRect(page, windowRect);
 
     page->chrome().setWindowRect(newWindowRect);
     page->chrome().show();
 
     created = true;
     return frame;
 }
 
 } // namespace WebCore