Cleanup FrameLoader::opener() to return a Frame*.

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 480 matching lines @@
     }
     checkCompleted();
 }
 
 void FrameLoader::scheduleCheckCompleted()
 {
     if (!m_checkTimer.isActive())
         m_checkTimer.startOneShot(0, FROM_HERE);
 }
 
-LocalFrame* FrameLoader::opener()
+Frame* FrameLoader::opener()
 {
-    // FIXME: Temporary hack to stage converting locations that really should be Frame.
-    return client() ? toLocalFrame(client()->opener()) : 0;
+    return client() ? client()->opener() : 0;
 }
 
 void FrameLoader::setOpener(LocalFrame* opener)
 {
     // If the frame is already detached, the opener has already been cleared.
     if (client())
         client()->setOpener(opener);
 }
 
 bool FrameLoader::allowPlugins(ReasonForCallingAllowPlugins reason)
@@ skipping 972 matching lines @@
     // FIXME: We need a way to propagate sandbox flags to out-of-process frames.
     Frame* parentFrame = m_frame->tree().parent();
     if (parentFrame && parentFrame->isLocalFrame())
         flags |= toLocalFrame(parentFrame)->document()->sandboxFlags();
     if (FrameOwner* frameOwner = m_frame->owner())
         flags |= frameOwner->sandboxFlags();
     return flags;
 }
 
 } // namespace blink