Revert 257524 "Move IsStringASCII/UTF8 to base namespace."

trunk/src/remoting/protocol/me2me_host_authenticator_factory.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.
 
 #include "remoting/protocol/me2me_host_authenticator_factory.h"
 
 #include "base/base64.h"
 #include "base/strings/string_util.h"
 #include "remoting/base/rsa_key_pair.h"
 #include "remoting/protocol/channel_authenticator.h"
@@ skipping 119 matching lines @@
     }
     remote_jid_prefix = local_jid.substr(0, slash_pos);
   } else {
     // TODO(rmsousa): This only works for cases where the JID prefix matches
     // the host owner email. Figure out a way to verify the JID in other cases.
     remote_jid_prefix = host_owner_;
   }
 
   // Verify that the client's jid is an ASCII string, and then check that the
   // client JID has the expected prefix. Comparison is case insensitive.
-  if (!base::IsStringASCII(remote_jid) ||
+  if (!IsStringASCII(remote_jid) ||
       !StartsWithASCII(remote_jid, remote_jid_prefix + '/', false)) {
     LOG(ERROR) << "Rejecting incoming connection from " << remote_jid;
     return scoped_ptr<Authenticator>(new RejectingAuthenticator());
   }
 
   if (!local_cert_.empty() && key_pair_.get()) {
     if (token_validator_factory_) {
       return NegotiatingHostAuthenticator::CreateWithThirdPartyAuth(
           local_cert_, key_pair_,
           token_validator_factory_->CreateTokenValidator(
               local_jid, remote_jid));
     }
 
     return NegotiatingHostAuthenticator::CreateWithSharedSecret(
         local_cert_, key_pair_, shared_secret_hash_.value,
         shared_secret_hash_.hash_function, pairing_registry_);
   }
 
   return scoped_ptr<Authenticator>(new RejectingAuthenticator());
 }
 
 }  // namespace protocol
 }  // namespace remoting