[DevTools] Filter any messages from previous sessions in DevToolsAgentHostImpl

third_party/WebKit/public/web/WebDevToolsAgentClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 26 matching lines @@
 
 namespace blink {
 
 class WebString;
 struct WebDeviceEmulationParams;
 
 class WebDevToolsAgentClient {
 public:
     // Sends response message over the protocol, update agent state on the browser side for
     // potential re-attach. |callId| for notifications is 0, |state| for notifications is empty.
-    virtual void sendProtocolMessage(int callId, const WebString& response, const WebString& state) { }
+    virtual void sendProtocolMessage(int sessionId, int callId, const WebString& response, const WebString& state) { }
 
     // Returns process id.
     virtual long processId() { return -1; }
 
     // Returns unique identifier of the entity within process.
     virtual int debuggerId() { return -1; }
 
     // Resume the inspected renderer that is waiting for DevTools front-end to initialize its state.
     virtual void resumeStartup() { }
 
@@ skipping 10 matching lines @@
     virtual void enableTracing(const WebString& categoryFilter) { }
     virtual void disableTracing() { }
 
 protected:
     ~WebDevToolsAgentClient() { }
 };
 
 } // namespace blink
 
 #endif