Move weborigin/ under platform/ so that it may someday call platform APIs

Source/core/loader/PrerenderHandle.h

 /*
  * Copyright (C) 2013 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PrerenderHandle_h
 #define PrerenderHandle_h
 
 #include "core/dom/DocumentLifecycleObserver.h"
-#include "weborigin/KURL.h"
+#include "platform/weborigin/KURL.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 
 namespace WebCore {
 
 class Document;
 class Prerender;
 class PrerenderClient;
 
@@ skipping 13 matching lines @@
     PrerenderHandle(Document&, PassRefPtr<Prerender>);
 
     void detach();
 
     RefPtr<Prerender> m_prerender;
 };
 
 }
 
 #endif // PrerenderHandle_h