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

third_party/WebKit/Source/modules/websockets/WorkerWebSocketChannel.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:
  *
  *     * 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 31 matching lines @@
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/WTFString.h"
 #include <memory>
 #include <stdint.h>
 
 namespace blink {
 
 class BlobDataHandle;
 class KURL;
-class ExecutionContext;
+class ThreadableLoadingContext;
 class WebSocketChannelSyncHelper;
 class WorkerGlobalScope;
 class WorkerLoaderProxy;
 
 class WorkerWebSocketChannel final : public WebSocketChannel {
   WTF_MAKE_NONCOPYABLE(WorkerWebSocketChannel);
 
  public:
   static WebSocketChannel* create(WorkerGlobalScope& workerGlobalScope,
                                   WebSocketChannelClient* client,
@@ skipping 30 matching lines @@
                      public WebSocketChannelClient,
                      public WorkerThreadLifecycleObserver {
     USING_GARBAGE_COLLECTED_MIXIN(Peer);
     WTF_MAKE_NONCOPYABLE(Peer);
 
    public:
     Peer(Bridge*, PassRefPtr<WorkerLoaderProxy>, WorkerThreadLifecycleContext*);
     ~Peer() override;
 
     // SourceLocation parameter may be shown when the connection fails.
-    bool initialize(std::unique_ptr<SourceLocation>, ExecutionContext*);
+    bool initialize(std::unique_ptr<SourceLocation>, ThreadableLoadingContext*);
 
     bool connect(const KURL&, const String& protocol);
     void sendTextAsCharVector(std::unique_ptr<Vector<char>>);
     void sendBinaryAsCharVector(std::unique_ptr<Vector<char>>);
     void sendBlob(PassRefPtr<BlobDataHandle>);
     void close(int code, const String& reason);
     void fail(const String& reason,
               MessageLevel,
               std::unique_ptr<SourceLocation>);
     void disconnect();
@@ skipping 71 matching lines @@
                          WebSocketChannelClient*,
                          std::unique_ptr<SourceLocation>);
 
   Member<Bridge> m_bridge;
   std::unique_ptr<SourceLocation> m_locationAtConnection;
 };
 
 }  // namespace blink
 
 #endif  // WorkerWebSocketChannel_h