[DevTools] filter any messages from previous session in DevToolsAgentHostImpl

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/basictypes.h"
 
 namespace IPC {
 class Message;
 }
 
 namespace blink {
 class WebSharedWorker;
 class WebString;
 }
 
 namespace content {
 
 class SharedWorkerDevToolsAgent {
  public:
   SharedWorkerDevToolsAgent(int route_id, blink::WebSharedWorker*);
   ~SharedWorkerDevToolsAgent();
 
   // Called on the Worker thread.
   bool OnMessageReceived(const IPC::Message& message);
-  void SendDevToolsMessage(int call_id,
+  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);
-  void OnReattach(const std::string& host_id, const std::string& state);
+  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 OnDispatchOnInspectorBackend(const std::string& message);
+  void OnDispatchOnInspectorBackend(int session_id, 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_