Adds a /json/protocol endpoint to serve the DevTools protocol

content/browser/devtools/devtools_http_handler.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_BROWSER_DEVTOOLS_DEVTOOLS_HTTP_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_HTTP_HANDLER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 80 matching lines @@
                 const std::string& message);
   void Send200(int connection_id,
                const std::string& data,
                const std::string& mime_type);
   void Send404(int connection_id);
   void Send500(int connection_id,
                const std::string& message);
   void AcceptWebSocket(int connection_id,
                        const net::HttpServerRequestInfo& request);
 
+  void DecompressAndSendJsonProtocol(int connection_id);
+
   // Returns the front end url without the host at the beginning.
   std::string GetFrontendURLInternal(const std::string& target_id,
                                      const std::string& host);
 
   std::unique_ptr<base::DictionaryValue> SerializeDescriptor(
       scoped_refptr<DevToolsAgentHost> agent_host,
       const std::string& host);
 
   // The thread used by the devtools handler to run server socket.
   base::Thread* thread_;
   std::string frontend_url_;
   std::string product_name_;
   std::string user_agent_;
   ServerWrapper* server_wrapper_;
   std::unique_ptr<net::IPEndPoint> server_ip_address_;
   using ConnectionToClientMap =
       std::map<int, std::unique_ptr<DevToolsAgentHostClientImpl>>;
   ConnectionToClientMap connection_to_client_;
   DevToolsManagerDelegate* delegate_;
   DevToolsSocketFactory* socket_factory_;
   base::WeakPtrFactory<DevToolsHttpHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsHttpHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_HTTP_HANDLER_H_