Revert of Delete dead signin code (SigninGlobalError)

chrome/test/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("//chrome/chrome_tests.gni")
 import("//chrome/test/base/js2gtest.gni")
@@ skipping 1654 matching lines @@
       }
     }
     if (enable_webrtc) {
       sources += rebase_path(
               chrome_tests_unit_gypi_values.chrome_unit_tests_webrtc_sources,
               ".",
               "//chrome")
     }
     if (is_chromeos) {
       deps += [ "//chrome/browser/chromeos:unit_tests" ]
-      sources -= [ "../browser/signin/signin_manager_unittest.cc" ]
+      sources -= [
+        "../browser/signin/signin_global_error_unittest.cc",
+        "../browser/signin/signin_manager_unittest.cc",
+      ]
     }
     if (use_x11) {
       deps += [ "//ui/events/devices" ]
       data_deps += [ "//tools/xdisplaycheck" ]
     } else {
       sources -= [ "../browser/password_manager/password_store_x_unittest.cc" ]
     }
     if (cld_version == 2) {
       # Unit tests should be independent of the CLD2 access mechanism, just use
       # static for simplicity.
@@ skipping 268 matching lines @@
     "//third_party/mojo/src/mojo/edk/system",
   ]
 
   if (!is_android && use_ash) {
     sources += rebase_path(
             chrome_tests_unit_gypi_values.chrome_test_support_unit_ash_sources,
             ".",
             "//chrome")
   }
 }