Componentize more signin code

chrome/browser/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//third_party/protobuf/proto_library.gni")
 
@@ skipping 1002 matching lines @@
     "search_engines/template_url_service_test_util.cc",
     "search_engines/template_url_service_test_util.h",
     "sessions/session_restore_test_helper.cc",
     "sessions/session_restore_test_helper.h",
     "sessions/session_service_test_helper.cc",
     "sessions/session_service_test_helper.h",
     "signin/fake_account_fetcher_service.cc",
     "signin/fake_account_fetcher_service.h",
     "signin/fake_gaia_cookie_manager_service.cc",
     "signin/fake_gaia_cookie_manager_service.h",
-    "signin/fake_profile_oauth2_token_service.cc",
-    "signin/fake_profile_oauth2_token_service.h",
     "signin/fake_profile_oauth2_token_service_builder.cc",
     "signin/fake_profile_oauth2_token_service_builder.h",
     "signin/fake_signin_manager.cc",
     "signin/fake_signin_manager.h",
     "ssl/ssl_client_auth_requestor_mock.cc",
     "ssl/ssl_client_auth_requestor_mock.h",
     "sync/profile_sync_components_factory_mock.cc",
     "sync/profile_sync_components_factory_mock.h",
     "sync/profile_sync_service_mock.cc",
     "sync/profile_sync_service_mock.h",
@@ skipping 172 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }