Merge 90936

Source/WebCore/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>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ skipping 1319 matching lines @@
 
     return urlString.startsWith("feed://", false) 
         || urlString.startsWith("feed:http:", false) || urlString.startsWith("feed:https:", false)
         || urlString.startsWith("feeds:http:", false) || urlString.startsWith("feeds:https:", false)
         || urlString.startsWith("feedsearch:http:", false) || urlString.startsWith("feedsearch:https:", false);
 }
 
 void FrameLoader::loadFrameRequest(const FrameLoadRequest& request, bool lockHistory, bool lockBackForwardList,
     PassRefPtr<Event> event, PassRefPtr<FormState> formState, ReferrerPolicy referrerPolicy)
 {    
+    // Protect frame from getting blown away inside dispatchBeforeLoadEvent in loadWithDocumentLoader.
+    RefPtr<Frame> protect(m_frame);
+
     KURL url = request.resourceRequest().url();
 
     ASSERT(m_frame->document());
     // FIXME: Should we move the isFeedWithNestedProtocolInHTTPFamily logic inside SecurityOrigin::canDisplay?
     if (!isFeedWithNestedProtocolInHTTPFamily(url) && !request.requester()->canDisplay(url)) {
         reportLocalLoadFailed(m_frame, url.string());
         return;
     }
 
     String referrer;
@@ skipping 2261 matching lines @@
         windowRect.setHeight(features.height + (windowRect.height() - pageSize.height()));
     page->chrome()->setWindowRect(windowRect);
 
     page->chrome()->show();
 
     created = true;
     return frame;
 }
 
 } // namespace WebCore