Update from https://crrev.com/308331

net/server/web_socket.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 NET_SERVER_WEB_SOCKET_H_
 #define NET_SERVER_WEB_SOCKET_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 12 matching lines @@
     FRAME_INCOMPLETE,
     FRAME_CLOSE,
     FRAME_ERROR
   };
 
   static WebSocket* CreateWebSocket(HttpServer* server,
                                     HttpConnection* connection,
                                     const HttpServerRequestInfo& request,
                                     size_t* pos);
 
-  static ParseResult DecodeFrameHybi17(const base::StringPiece& frame,
-                                       bool client_frame,
-                                       int* bytes_consumed,
-                                       std::string* output);
-
-  static std::string EncodeFrameHybi17(const std::string& data,
-                                       int masking_key);
-
   virtual void Accept(const HttpServerRequestInfo& request) = 0;
   virtual ParseResult Read(std::string* message) = 0;
   virtual void Send(const std::string& message) = 0;
-  virtual ~WebSocket() {}
+  virtual ~WebSocket();
 
  protected:
   WebSocket(HttpServer* server, HttpConnection* connection);
 
   HttpServer* const server_;
   HttpConnection* const connection_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebSocket);
 };
 
 }  // namespace net
 
 #endif  // NET_SERVER_WEB_SOCKET_H_