vpn-manager: accept a hostname for remote host

l2tp_manager.h

 // Copyright (c) 2011 The Chromium OS 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 _VPN_MANAGER_L2TP_MANAGER_H_
 #define _VPN_MANAGER_L2TP_MANAGER_H_
 
 #include "base/file_util.h"
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "gtest/gtest_prod.h"  // for FRIEND_TEST
 #include "vpn-manager/service_manager.h"
 
 namespace chromeos {
 class Process;
 }
 
 // Manages the L2TP daemon.  This manager orchestrates configuring and
 // launching the L2TP daemon, initiating the L2TP connection, and
 // detecting when PPP has been set up.  It also sends user credentials
 // to PPP through the L2TP control fifo unless the user has specified
 // a PPP plugin should be used, which it will defer to.  Current
 // implementation assumes a connection that has been stopped will not
 // be started again with the same object.
 class L2tpManager : public ServiceManager {
  public:
   L2tpManager();
 
-  // Initialize the object using |remote_address|.  Returns false if
+  // Initialize the object using |remote_host|.  Returns false if
   // an illegal set of parameters has been given.  Has no side effects
   // other than setting up the object.
-  bool Initialize(const std::string& remote_address);
+  bool Initialize(const std::string& remote_host);
 
   virtual bool Start();
   virtual void Stop();
   virtual int Poll();
   virtual void ProcessOutput();
   virtual bool IsChild(pid_t pid);
 
   // Returns the stderr output file descriptor of our child process.
   int output_fd() const { return output_fd_; }
 
@@ skipping 15 matching lines @@
   std::string FormatPppdConfiguration();
   bool Initiate();
   bool Terminate();
 
   // Has the L2TP connection been initiated yet.
   bool was_initiated_;
   // l2tp daemon stderr pipe file descriptor.
   int output_fd_;
   // Start time of the l2tp daemon.
   base::TimeTicks start_ticks_;
-  // Remote address for L2TP connection.
-  std::string remote_address_;
+  // Remote host for L2TP connection.
+  std::string remote_host_;
   // Last partial line read from output_fd_.
   std::string partial_output_line_;
   // Path to a file whose existence indicates the ppp device is up.
   FilePath ppp_interface_path_;
   // Path to l2tp daemon's control file.
   FilePath l2tpd_control_path_;
   // Running l2tp process.
   scoped_ptr<chromeos::Process> l2tpd_;
 };
 
 #endif  // _VPN_MANAGER_L2TP_MANAGER_H_