Remove DebuggerAgent.

src/debug-agent.h

-// Copyright 2006-2008 the V8 project 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 V8_DEBUG_AGENT_H_
-#define V8_DEBUG_AGENT_H_
-
-#include "../include/v8-debug.h"
-#include "platform.h"
-
-namespace v8 {
-namespace internal {
-
-// Forward decelrations.
-class DebuggerAgentSession;
-class Socket;
-
-
-// Debugger agent which starts a socket listener on the debugger port and
-// handles connection from a remote debugger.
-class DebuggerAgent: public Thread {
- public:
-  DebuggerAgent(Isolate* isolate, const char* name, int port);
-  ~DebuggerAgent();
-
-  void Shutdown();
-  void WaitUntilListening();
-
-  Isolate* isolate() { return isolate_; }
-
- private:
-  void Run();
-  void CreateSession(Socket* socket);
-  void DebuggerMessage(const v8::Debug::Message& message);
-  void CloseSession();
-  void OnSessionClosed(DebuggerAgentSession* session);
-
-  Isolate* isolate_;
-  SmartArrayPointer<const char> name_;  // Name of the embedding application.
-  int port_;  // Port to use for the agent.
-  Socket* server_;  // Server socket for listen/accept.
-  bool terminate_;  // Termination flag.
-  RecursiveMutex session_access_;  // Mutex guarding access to session_.
-  DebuggerAgentSession* session_;  // Current active session if any.
-  Semaphore terminate_now_;  // Semaphore to signal termination.
-  Semaphore listening_;
-
-  friend class DebuggerAgentSession;
-  friend void DebuggerAgentMessageHandler(const v8::Debug::Message& message);
-
-  DISALLOW_COPY_AND_ASSIGN(DebuggerAgent);
-};
-
-
-// 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_;
-  Socket* client_;
-
-  DISALLOW_COPY_AND_ASSIGN(DebuggerAgentSession);
-};
-
-
-// Utility methods factored out to be used by the D8 shell as well.
-class DebuggerAgentUtil {
- public:
-  static const char* const kContentLength;
-
-  static SmartArrayPointer<char> ReceiveMessage(Socket* conn);
-  static bool SendConnectMessage(Socket* conn, const char* embedding_host);
-  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  // V8_DEBUG_AGENT_H_