DevTools: add backend for discovering connected ADB devices.

chrome/browser/devtools/adb_client_socket.h

+// Copyright (c) 2013 The Chromium 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 CHROME_BROWSER_DEVTOOLS_ADB_CLIENT_SOCKET_H_
+#define CHROME_BROWSER_DEVTOOLS_ADB_CLIENT_SOCKET_H_
+
+#include "base/callback.h"
+#include "net/base/io_buffer.h"
+#include "net/socket/tcp_client_socket.h"
+
+class ADBClientSocket {
+ public:
+  typedef base::Callback<void(const std::string& error,
+                              const std::string& data)> Callback;
+
+  static void Query(int port,
+                    const std::string& query,
+                    const Callback& callback);
+
+ private:
+  ADBClientSocket();
+  ~ADBClientSocket();
+
+  void InnerQuery(int port, const std::string& query, const Callback& callback);
+  void OnConnectComplete(scoped_refptr<net::StringIOBuffer> request_buffer,
+                         int result);
+  void OnWriteComplete(int result);
+  void OnReadComplete(scoped_refptr<net::IOBuffer> response_buffer,
+                      int result);
+  bool CheckNetResultOrDie(int result);
+  void ReportSuccessAndDie();
+  void ReportInvalidResponseAndDie();
+  void ReportErrorAndDie(const std::string& error);
+  void Destroy();
+
+  Callback callback_;
+  scoped_ptr<net::TCPClientSocket> socket_;
+  std::string response_;
+  int expected_response_length_;
+
+  DISALLOW_COPY_AND_ASSIGN(ADBClientSocket);
+};
+
+#endif  // CHROME_BROWSER_DEVTOOLS_ADB_CLIENT_SOCKET_H_