Clang build break fixes.

chrome/browser/chromeos/login/google_authenticator.cc

 // Copyright (c) 2011 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 "chrome/browser/chromeos/login/google_authenticator.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 390 matching lines @@
 std::string GoogleAuthenticator::EncryptToken(const std::string& unused) {
   NOTIMPLEMENTED();
   return std::string();
 }
 
 std::string GoogleAuthenticator::DecryptToken(const std::string& unused) {
   NOTIMPLEMENTED();
   return std::string();
 }
 
-std::string GoogleAuthenticator::DecryptLegacyToken(const std::string& unused) {
-  NOTIMPLEMENTED();
-  return std::string();
-}
-
-
 void GoogleAuthenticator::LoadSystemSalt() {
   if (!system_salt_.empty())
     return;
   system_salt_ = CrosLibrary::Get()->GetCryptohomeLibrary()->GetSystemSalt();
   CHECK(!system_salt_.empty());
   CHECK_EQ(system_salt_.size() % 2, 0U);
 }
 
 void GoogleAuthenticator::LoadLocalaccount(const std::string& filename) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
@@ skipping 67 matching lines @@
                                       const unsigned int len) {
   if (len < 2*binary_len)
     return false;
   memset(hex_string, 0, len);
   for (uint i = 0, j = 0; i < binary_len; i++, j+=2)
     snprintf(hex_string + j, len - j, "%02x", binary[i]);
   return true;
 }
 
 }  // namespace chromeos