wtf/Vector.h included more than necessary

Source/core/html/imports/HTMLImportChild.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 16 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.
  */
 
 #ifndef HTMLImportChild_h
 #define HTMLImportChild_h
 
 #include "core/html/imports/HTMLImport.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
-#include "wtf/Vector.h"
 #include "wtf/WeakPtr.h"
 
 namespace blink {
 
 class CustomElementMicrotaskImportStep;
 class HTMLImportLoader;
 class HTMLImportChildClient;
 class HTMLLinkElement;
 
 //
@@ skipping 56 matching lines @@
 
 inline HTMLImportChild* toHTMLImportChild(HTMLImport* import)
 {
     ASSERT(!import || !import->isRoot());
     return static_cast<HTMLImportChild*>(import);
 }
 
 } // namespace blink
 
 #endif // HTMLImportChild_h