Fixed space leak in DebuggerAgentSession.

src/debug-agent.h

 // Copyright 2006-2008 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 65 matching lines @@
 };
 
 
 // Debugger agent session. The session receives requests from the remote
 // debugger and sends debugger events/responses to the remote debugger.
 class DebuggerAgentSession: public Thread {
  public:
   DebuggerAgentSession(DebuggerAgent* agent, Socket* client)
       : Thread("v8:DbgAgntSessn"),
         agent_(agent), client_(client) {}
+  ~DebuggerAgentSession();
 
   void DebuggerMessage(Vector<uint16_t> message);
   void Shutdown();
 
  private:
   void Run();
 
   void DebuggerMessage(Vector<char> message);
 
   DebuggerAgent* agent_;
@@ skipping 13 matching lines @@
   static bool SendMessage(Socket* conn, const Vector<uint16_t> message);
   static bool SendMessage(Socket* conn, const v8::Handle<v8::String> message);
   static int ReceiveAll(Socket* conn, char* data, int len);
 };
 
 } }  // namespace v8::internal
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 #endif  // V8_DEBUG_AGENT_H_