[DevTools] filter any messages from previous session in DevToolsAgentHostImpl

third_party/WebKit/public/web/WebDevToolsAgent.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 25 matching lines @@
 
 namespace blink {
 
 class WebString;
 struct WebPoint;
 
 class WebDevToolsAgent {
 public:
     virtual ~WebDevToolsAgent() {}
 
-    virtual void attach(const WebString& hostId) = 0;
-    virtual void reattach(const WebString& hostId, const WebString& savedState) = 0;
+    virtual void attach(const WebString& hostId, int sessionId) = 0;
+    virtual void reattach(const WebString& hostId, int sessionId, const WebString& savedState) = 0;
     virtual void detach() = 0;
 
     virtual void continueProgram() = 0;
 
-    virtual void dispatchOnInspectorBackend(const WebString& message) = 0;
+    virtual void dispatchOnInspectorBackend(int sessionId, const WebString& message) = 0;
 
     virtual void inspectElementAt(const WebPoint&) = 0;
 
     // Exposed for TestRunner.
     virtual void evaluateInWebInspector(long callId, const WebString& script) = 0;
     virtual WebString evaluateInWebInspectorOverlay(const WebString& script) = 0;
 
     class MessageDescriptor {
     public:
         virtual ~MessageDescriptor() { }
         virtual WebDevToolsAgent* agent() = 0;
         virtual WebString message() = 0;
     };
     // Asynchronously request debugger to pause immediately and run the command.
-    BLINK_EXPORT static void interruptAndDispatch(MessageDescriptor*);
+    BLINK_EXPORT static void interruptAndDispatch(int sessionId, MessageDescriptor*);
     BLINK_EXPORT static bool shouldInterruptForMessage(const WebString&);
 
 };
 
 } // namespace blink
 
 #endif