UserManager stack refactoring.

components/user_manager.gypi

 # 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.
 
 {
   'variables': {
     # Cross-platform user_manager sources.
     'user_manager_shared_sources': [
       'user_manager/empty_user_info.cc',
       'user_manager/empty_user_info.h',
@@ skipping 42 matching lines @@
           '<(DEPTH)/base/base.gyp:base_prefs',
           '<(DEPTH)/components/components.gyp:session_manager_component',
           '<(DEPTH)/google_apis/google_apis.gyp:google_apis',
           '<(DEPTH)/ui/chromeos/ui_chromeos.gyp:ui_chromeos_resources',
           '<(DEPTH)/ui/chromeos/ui_chromeos.gyp:ui_chromeos_strings',
           '<(DEPTH)/url/url.gyp:url_lib',
         ],
         'sources': [ '<@(user_manager_chromeos_sources)' ],
       }],
     ],
-  }],
+  },
+  {
+    # GN version: //components/user_manager:test_support
+    'target_name': 'user_manager_test_support',
+    'type': 'static_library',
+    'dependencies': [
+      '<(DEPTH)/base/base.gyp:base',
+      '<(DEPTH)/base/base.gyp:test_support_base',
+      '<(DEPTH)/testing/gmock.gyp:gmock',
+      '<(DEPTH)/testing/gtest.gyp:gtest',
+      'user_manager',
+    ],
+    'sources': [
+      'user_manager/fake_user_manager.cc',
+      'user_manager/fake_user_manager.h',
+      ],
+    },
+  ],
 }