Split out Members, Persistents and SelfKeepAlive in separate headers.

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

 /*
  * Copyright (C) 2010 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 19 matching lines @@
  */
 
 #ifndef PingLoader_h
 #define PingLoader_h
 
 #include "core/CoreExport.h"
 #include "core/fetch/ResourceLoaderOptions.h"
 #include "core/frame/LocalFrameLifecycleObserver.h"
 #include "platform/Timer.h"
 #include "platform/heap/Handle.h"
+#include "platform/heap/SelfKeepAlive.h"
 #include "public/platform/WebURLLoaderClient.h"
+#include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
-#include "wtf/RefPtr.h"
 
 namespace blink {
 
 class EncodedFormData;
 class LocalFrame;
 class KURL;
 class ResourceRequest;
 
 // Issue an asynchronous, one-directional request at some resources, ignoring
 // any response. The request is made independent of any LocalFrame staying alive,
@@ skipping 44 matching lines @@
     OwnPtr<WebURLLoader> m_loader;
     Timer<PingLoader> m_timeout;
     String m_url;
     unsigned long m_identifier;
     SelfKeepAlive<PingLoader> m_keepAlive;
 };
 
 } // namespace blink
 
 #endif // PingLoader_h