[Chrome OS] Refactor Canonicalize() method into base class to prepare for new Authenticator subclass

chrome/chrome_tests.gypi

 # Copyright (c) 2010 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.
 
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_dll_resource.h',
       'common/pref_names.cc',
       'common/pref_names.h',
@@ skipping 847 matching lines @@
         'browser/chrome_browser_application_mac_unittest.mm',
         'browser/chrome_plugin_unittest.cc',
         'browser/chrome_thread_unittest.cc',
         'browser/chromeos/customization_document_unittest.cc',
         'browser/chromeos/dom_ui/language_options_handler_unittest.cc',
         'browser/chromeos/external_cookie_handler_unittest.cc',
         'browser/chromeos/external_metrics_unittest.cc',
         'browser/chromeos/gview_request_interceptor_unittest.cc',
         'browser/chromeos/input_method/input_method_util_unittest.cc',
         'browser/chromeos/language_preferences_unittest.cc',
+        'browser/chromeos/login/authenticator_unittest.cc',
         'browser/chromeos/login/cookie_fetcher_unittest.cc',
         'browser/chromeos/login/cryptohome_op_unittest.cc',
         'browser/chromeos/login/google_authenticator_unittest.cc',
         'browser/chromeos/login/mock_auth_attempt_state_resolver.h',
         'browser/chromeos/login/mock_auth_response_handler.cc',
         'browser/chromeos/login/mock_url_fetchers.h',
         'browser/chromeos/login/mock_url_fetchers.cc',
         'browser/chromeos/login/online_attempt_unittest.cc',
         'browser/chromeos/login/owner_key_utils_unittest.cc',
         'browser/chromeos/login/owner_manager_unittest.cc',
@@ skipping 2147 matching lines @@
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }
 
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