blink: Cleanup core class forward declarations

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

 /*
  * Copyright (C) 2011 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
 #include "wtf/Noncopyable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class SecurityOrigin;
 class ContentSecurityPolicy;
-class KURL;
 
 class CORE_EXPORT SecurityContext : public GarbageCollectedMixin {
   WTF_MAKE_NONCOPYABLE(SecurityContext);
 
  public:
   DECLARE_VIRTUAL_TRACE();
 
   using InsecureNavigationsSet = HashSet<unsigned, WTF::AlreadyHashed>;
 
   SecurityOrigin* getSecurityOrigin() const { return m_securityOrigin.get(); }
@@ skipping 46 matching lines @@
   SandboxFlags m_sandboxFlags;
 
   WebAddressSpace m_addressSpace;
   WebInsecureRequestPolicy m_insecureRequestPolicy;
   InsecureNavigationsSet m_insecureNavigationsToUpgrade;
 };
 
 }  // namespace blink
 
 #endif  // SecurityContext_h