Remove ClientLogin support from remoting host

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 929 matching lines @@
   if (!config.GetString(kHostSecretHashConfigPath,
                         &host_secret_hash_string)) {
     host_secret_hash_string = "plain:";
   }
 
   if (!host_secret_hash_.Parse(host_secret_hash_string)) {
     LOG(ERROR) << "Invalid host_secret_hash.";
     return false;
   }
 
-  // Use an XMPP connection to the Talk network for session signalling.
+  // Use an XMPP connection to the Talk network for session signaling.
   if (!config.GetString(kXmppLoginConfigPath, &xmpp_server_config_.username) ||
-      !(config.GetString(kXmppAuthTokenConfigPath,
-                         &xmpp_server_config_.auth_token) ||
-        config.GetString(kOAuthRefreshTokenConfigPath,
-                         &oauth_refresh_token_))) {
+      !config.GetString(kOAuthRefreshTokenConfigPath, &oauth_refresh_token_)) {
     LOG(ERROR) << "XMPP credentials are not defined in the config.";
     return false;
   }
 
-  if (!oauth_refresh_token_.empty()) {
-    // SignalingConnector (inside HostSignalingManager) is responsible for
-    // getting OAuth token.
-    xmpp_server_config_.auth_token = "";
-    xmpp_server_config_.auth_service = "oauth2";
-  } else if (!config.GetString(kXmppAuthServiceConfigPath,
-                               &xmpp_server_config_.auth_service)) {
-    // For the me2me host, we default to ClientLogin token for chromiumsync
-    // because earlier versions of the host had no HTTP stack with which to
-    // request an OAuth2 access token.
-    xmpp_server_config_.auth_service = kChromotingTokenDefaultServiceName;
-  }
-
   if (config.GetString(kHostOwnerConfigPath, &host_owner_)) {
     // Service account configs have a host_owner, different from the xmpp_login.
     use_service_account_ = true;
   } else {
     // User credential configs only have an xmpp_login, which is also the owner.
     host_owner_ = xmpp_server_config_.username;
     use_service_account_ = false;
   }
 
   // For non-Gmail Google accounts, the owner base JID differs from the email.
@@ skipping 643 matching lines @@
       base::TimeDelta::FromSeconds(kShutdownTimeoutSeconds));
   new HostProcess(context.Pass(), &exit_code, &shutdown_watchdog);
 
   // Run the main (also UI) message loop until the host no longer needs it.
   message_loop.Run();
 
   return exit_code;
 }
 
 }  // namespace remoting