[DevTools] Pass session id in detach request

content/child/shared_worker_devtools_agent.h

 // Copyright 2014 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_SHARED_WORKER_DEVTOOLS_AGENT_H_
 #define CONTENT_CHILD_SHARED_WORKER_DEVTOOLS_AGENT_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 19 matching lines @@
   void SendDevToolsMessage(int session_id,
                            int call_id,
                            const blink::WebString& message,
                            const blink::WebString& post_state);
 
  private:
   void OnAttach(const std::string& host_id, int session_id);
   void OnReattach(const std::string& host_id,
                   int session_id,
                   const std::string& state);
-  void OnDetach();
+  void OnDetach(int session_id);
   void OnDispatchOnInspectorBackend(
       int session_id,
       int call_id,
       const std::string& method,
       const std::string& message);
 
   bool Send(IPC::Message* message);
   const int route_id_;
   blink::WebSharedWorker* webworker_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedWorkerDevToolsAgent);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SHARED_WORKER_DEVTOOLS_AGENT_H_