patch from issue 473153002

components/signin/core/browser/account_tracker_service_unittest.cc

 // 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.
 
 #include <algorithm>
 #include <vector>
 
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/testing_pref_service.h"
@@ skipping 489 matching lines @@
 
     std::vector<AccountTrackerService::AccountInfo> infos =
         tracker.GetAccounts();
     ASSERT_EQ(1u, infos.size());
     EXPECT_EQ("beta", infos[0].account_id);
     EXPECT_EQ(AccountIdToGaiaId("beta"), infos[0].gaia);
     EXPECT_EQ(AccountIdToEmail("beta"), infos[0].email);
     tracker.Shutdown();
   }
 }
+
+TEST_F(AccountTrackerServiceTest, SeedAccountInfo) {
+  std::vector<AccountTrackerService::AccountInfo> infos =
+      account_tracker()->GetAccounts();
+  EXPECT_EQ(0u, infos.size());
+
+  account_tracker()->SeedAccountInfo("alpha",
+                                     AccountIdToGaiaId("alpha"),
+                                     AccountIdToEmail("alpha"));
+
+  infos = account_tracker()->GetAccounts();
+  EXPECT_EQ(1u, infos.size());
+  EXPECT_EQ("alpha", infos[0].account_id);
+  EXPECT_EQ(AccountIdToGaiaId("alpha"), infos[0].gaia);
+  EXPECT_EQ(AccountIdToEmail("alpha"), infos[0].email);
+}