thread isolate for DebugMessage

include/v8-debug.h

 // Copyright 2008 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 88 matching lines @@
 
     /**
      * Client data passed with the corresponding request if any. This is the
      * client_data data value passed into Debug::SendCommand along with the
      * request that led to the message or NULL if the message is an event. The
      * debugger takes ownership of the data and will delete it even if there is
      * no message handler.
      */
     virtual ClientData* GetClientData() const = 0;
 
+    virtual Isolate* GetIsolate() const = 0;
+
     virtual ~Message() {}
   };
 
 
   /**
    * An event details object passed to the debug event listener.
    */
   class EventDetails {
    public:
     /**
@@ skipping 210 matching lines @@
 };
 
 
 }  // namespace v8
 
 
 #undef EXPORT
 
 
 #endif  // V8_V8_DEBUG_H_