Limit the ports used by IT2Me when NAT traversal is disabled.

remoting/host/remoting_me2me_host.cc

 // Copyright (c) 2012 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.
 //
 // This file implements a standalone host process for Me2Me.
 
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/bind.h"
@@ skipping 68 matching lines @@
 const char kDaemonIpcSwitchName[] = "chromoting-ipc";
 
 // These are used for parsing the config-file locations from the command line,
 // and for defining the default locations if the switches are not present.
 const char kAuthConfigSwitchName[] = "auth-config";
 const char kHostConfigSwitchName[] = "host-config";
 
 const FilePath::CharType kDefaultHostConfigFile[] =
     FILE_PATH_LITERAL("host.json");
 
-const int kMinPortNumber = 12400;
-const int kMaxPortNumber = 12409;
-
 const char kUnofficialOAuth2ClientId[] =
     "440925447803-2pi3v45bff6tp1rde2f7q6lgbor3o5uj.apps.googleusercontent.com";
 const char kUnofficialOAuth2ClientSecret[] = "W2ieEsG-R1gIA4MMurGrgMc_";
 
 const char kOfficialOAuth2ClientId[] =
     "440925447803-avn2sj1kc099s0r7v62je5s339mu0am1.apps.googleusercontent.com";
 const char kOfficialOAuth2ClientSecret[] = "Bgur6DFiOMM1h8x-AQpuTQlK";
 
 }  // namespace
 
@@ skipping 389 matching lines @@
     if (!desktop_environment_.get()) {
       desktop_environment_ =
           DesktopEnvironment::CreateForService(context_.get());
     }
 
     NetworkSettings network_settings(
         allow_nat_traversal_ ?
         NetworkSettings::NAT_TRAVERSAL_ENABLED :
         NetworkSettings::NAT_TRAVERSAL_DISABLED);
     if (!allow_nat_traversal_) {
-      network_settings.min_port = kMinPortNumber;
-      network_settings.max_port = kMaxPortNumber;
+      network_settings.min_port = NetworkSettings::kDefaultMinPort;
+      network_settings.max_port = NetworkSettings::kDefaultMaxPort;
     }
 
     host_ = new ChromotingHost(
         context_.get(), signal_strategy_.get(), desktop_environment_.get(),
         CreateHostSessionManager(network_settings,
                                  context_->url_request_context_getter()));
 
     // TODO(simonmorris): Get the maximum session duration from a policy.
 #if defined(OS_LINUX)
     host_->SetMaximumSessionDuration(base::TimeDelta::FromHours(20));
@@ skipping 218 matching lines @@
             user32.GetFunctionPointer("SetProcessDPIAware"));
     set_process_dpi_aware();
   }
 
   // CommandLine::Init() ignores the passed |argc| and |argv| on Windows getting
   // the command line from GetCommandLineW(), so we can safely pass NULL here.
   return main(0, NULL);
 }
 
 #endif  // defined(OS_WIN)