Remove ~1750 superfluous includes from core

Source/core/html/DOMURL.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2012 Motorola Mobility Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #include "core/html/DOMURL.h"
 
 #include <wtf/MainThread.h>
 #include <wtf/PassOwnPtr.h>
-#include "core/dom/ActiveDOMObject.h"
 #include "core/dom/ScriptExecutionContext.h"
 #include "core/fileapi/Blob.h"
 #include "core/fileapi/BlobURL.h"
 #include "core/fileapi/ThreadableBlobRegistry.h"
 #include "core/html/PublicURLManager.h"
 #include "core/loader/cache/MemoryCache.h"
-#include "core/platform/KURL.h"
-#include "core/platform/network/ResourceRequest.h"
 #include "modules/mediasource/MediaSourceRegistry.h"
 #include "modules/mediasource/WebKitMediaSource.h"
 #include "modules/mediastream/MediaStream.h"
 #include "modules/mediastream/MediaStreamRegistry.h"
-#include "weborigin/SecurityOrigin.h"
 
 namespace WebCore {
 
 String DOMURL::createObjectURL(ScriptExecutionContext* scriptExecutionContext, WebKitMediaSource* source)
 {
     // Since WebWorkers cannot obtain MediaSource objects, we should be on the main thread.
     ASSERT(isMainThread());
 
     if (!scriptExecutionContext || !source)
         return String();
@@ skipping 64 matching lines @@
     if (streamURLs.contains(url.string())) {
         // FIXME: make sure of this assertion below. Raise a spec question if required.
         // Since WebWorkers cannot obtain Stream objects, we should be on the main thread.
         ASSERT(isMainThread());
         MediaStreamRegistry::registry().unregisterMediaStreamURL(url);
         streamURLs.remove(url.string());
     }
 }
 
 } // namespace WebCore