Componentize SigninErrorController unittest.

components/signin.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.
 
 {
   'targets': [
     {
       'target_name': 'signin_core_common',
       'type': 'static_library',
       'include_dirs': [
@@ skipping 35 matching lines @@
         'signin/core/browser/signin_internals_util.h',
         'signin/core/browser/signin_manager_base.cc',
         'signin/core/browser/signin_manager_base.h',
         'signin/core/browser/signin_manager_cookie_helper.cc',
         'signin/core/browser/signin_manager_cookie_helper.h',
         'signin/core/browser/webdata/token_service_table.cc',
         'signin/core/browser/webdata/token_service_table.h',
         'signin/core/browser/webdata/token_web_data.cc',
         'signin/core/browser/webdata/token_web_data.h',
       ],
+      'conditions': [
+        ['OS=="android"', {
+          'sources!': [
+            # Not used on Android.
+            'signin/core/browser/mutable_profile_oauth2_token_service.cc',
+            'signin/core/browser/mutable_profile_oauth2_token_service.h',
+          ],
+        }],
+      ],
+    },
+    {
+      'target_name': 'signin_core_browser_test_support',
+      'type': 'static_library',
+      'dependencies': [
+        'signin_core_browser',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'signin/core/browser/fake_auth_status_provider.cc',
+        'signin/core/browser/fake_auth_status_provider.h',
+      ],
     },
   ],
-  'conditions': [
-    ['OS=="android"', {
-      'sources!': [
-        # Not used on Android.
-        'signin/core/browser/mutable_profile_oauth2_token_service.cc',
-        'signin/core/browser/mutable_profile_oauth2_token_service.h',
-      ],
-    }],
-  ],
 }