blink: Cleanup core class forward declarations

third_party/WebKit/Source/core/loader/MixedContentChecker.h

 /*
  * Copyright (C) 2012 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 24 matching lines @@
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ResourceRequest.h"
 #include "public/platform/WebMixedContent.h"
 #include "public/platform/WebURLRequest.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class Frame;
-class FrameLoaderClient;
 class LocalFrame;
 class KURL;
 class ResourceResponse;
 class SecurityOrigin;
 
 class CORE_EXPORT MixedContentChecker final {
   WTF_MAKE_NONCOPYABLE(MixedContentChecker);
   DISALLOW_NEW();
 
  public:
@@ skipping 54 matching lines @@
   static void logToConsoleAboutWebSocket(LocalFrame*,
                                          const KURL&,
                                          const KURL&,
                                          bool allowed);
   static void count(Frame*, WebURLRequest::RequestContext);
 };
 
 }  // namespace blink
 
 #endif  // MixedContentChecker_h