Remove old WebSocket implementation from content/

content/child/socket_stream_dispatcher.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_CHILD_SOCKET_STREAM_DISPATCHER_H_
-#define CONTENT_CHILD_SOCKET_STREAM_DISPATCHER_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "ipc/ipc_listener.h"
-
-namespace blink {
-class WebSocketStreamHandle;
-}
-
-namespace content {
-
-class WebSocketStreamHandleBridge;
-class WebSocketStreamHandleDelegate;
-
-// Dispatches socket stream related messages sent to a child process from the
-// main browser process.  There is one instance per child process.  Messages
-// are dispatched on the main child thread.  The RenderThread class
-// creates an instance of SocketStreamDispatcher and delegates calls to it.
-class SocketStreamDispatcher : public IPC::Listener {
- public:
-  SocketStreamDispatcher();
-  ~SocketStreamDispatcher() override {}
-
-  static WebSocketStreamHandleBridge* CreateBridge(
-      blink::WebSocketStreamHandle* handle,
-      WebSocketStreamHandleDelegate* delegate);
-
-  // IPC::Listener implementation.
-  bool OnMessageReceived(const IPC::Message& msg) override;
-
- private:
-  void OnConnected(int socket_id, int max_amount_send_allowed);
-  void OnSentData(int socket_id, int amount_sent);
-  void OnReceivedData(int socket_id, const std::vector<char>& data);
-  void OnClosed(int socket_id);
-  void OnFailed(int socket_id, int error_code);
-
-  DISALLOW_COPY_AND_ASSIGN(SocketStreamDispatcher);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_SOCKET_STREAM_DISPATCHER_H_