Sync the URL constructor with the spec

third_party/WebKit/Source/core/dom/DOMURL.h

 /*
  * 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 34 matching lines @@
     DEFINE_WRAPPERTYPEINFO();
 public:
     static DOMURL* create(const String& url, ExceptionState& exceptionState)
     {
         return new DOMURL(url, blankURL(), exceptionState);
     }
     static DOMURL* create(const String& url, const String& base, ExceptionState& exceptionState)
     {
         return new DOMURL(url, KURL(KURL(), base), exceptionState);
     }
-    static DOMURL* create(const String& url, DOMURL* base, ExceptionState& exceptionState)
-    {
-        ASSERT(base);
-        return new DOMURL(url, base->m_url, exceptionState);
-    }
 
     static String createObjectURL(ExecutionContext*, Blob*, ExceptionState&);
     static void revokeObjectURL(ExecutionContext*, const String&);
 
     CORE_EXPORT static String createPublicURL(ExecutionContext*, URLRegistrable*, const String& uuid = String());
     static void revokeObjectUUID(ExecutionContext*, const String&);
 
     KURL url() const override { return m_url; }
     void setURL(const KURL& url) override { m_url = url; }
 
     String input() const override { return m_input; }
     void setInput(const String&) override;
 
     DEFINE_INLINE_TRACE() { }
 
 private:
     DOMURL(const String& url, const KURL& base, ExceptionState&);
 
     KURL m_url;
     String m_input;
 };
 
 } // namespace blink
 
 #endif // DOMURL_h