Introduce ThreadableLoadingContext: make threaded loading code one step away from Document

third_party/WebKit/Source/modules/websockets/WebSocketChannel.h

 /*
  * Copyright (C) 2009 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 25 matching lines @@
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
 #include <memory>
 
 namespace blink {
 
 class BlobDataHandle;
 class DOMArrayBuffer;
-class ExecutionContext;
 class KURL;
 class WebSocketChannelClient;
 
 class MODULES_EXPORT WebSocketChannel
     : public GarbageCollectedFinalized<WebSocketChannel> {
   WTF_MAKE_NONCOPYABLE(WebSocketChannel);
 
  public:
   WebSocketChannel() {}
   static WebSocketChannel* create(ExecutionContext*, WebSocketChannelClient*);
@@ skipping 47 matching lines @@
   virtual void disconnect() = 0;  // Will suppress didClose().
 
   virtual ~WebSocketChannel() {}
 
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 };
 
 }  // namespace blink
 
 #endif  // WebSocketChannel_h