[Sync] Fix bug where DeviceInfo is missing a backup timestamp

chrome/browser/sync/profile_sync_service_unittest.cc

 // Copyright (c) 2012 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 "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/invalidation/fake_invalidation_service.h"
 #include "chrome/browser/invalidation/profile_invalidation_provider_factory.h"
 #include "chrome/browser/signin/fake_profile_oauth2_token_service.h"
 #include "chrome/browser/signin/fake_profile_oauth2_token_service_builder.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/sync/glue/sync_backend_host_mock.h"
 #include "chrome/browser/sync/profile_sync_components_factory_mock.h"
 #include "chrome/browser/sync/supervised_user_signin_manager_wrapper.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
+#include "chrome/grit/generated_resources.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_pref_service_syncable.h"
 #include "chrome/test/base/testing_profile.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "components/invalidation/invalidation_service.h"
 #include "components/invalidation/profile_invalidation_provider.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "components/sync_driver/data_type_manager.h"
 #include "components/sync_driver/pref_names.h"
 #include "components/sync_driver/sync_prefs.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/l10n/l10n_util.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace browser_sync {
 
 namespace {
 
 class FakeDataTypeManager : public sync_driver::DataTypeManager {
@@ skipping 561 matching lines @@
 
 TEST_F(ProfileSyncServiceTest, GetSyncServiceURL) {
   // See that we can override the URL with a flag.
   CommandLine command_line(
       base::FilePath(base::FilePath(FILE_PATH_LITERAL("chrome.exe"))));
   command_line.AppendSwitchASCII(switches::kSyncServiceURL, "https://foo/bar");
   EXPECT_EQ("https://foo/bar",
             ProfileSyncService::GetSyncServiceURL(command_line).spec());
 }
 
+// Verify that LastSyncedTime is cleared when the user signs out.
+TEST_F(ProfileSyncServiceTest, ClearLastSyncedTimeOnSignOut) {
+  IssueTestTokens();
+  CreateService(AUTO_START);
+  ExpectDataTypeManagerCreation(1);
+  ExpectSyncBackendHostCreation(1);
+  InitializeForNthSync();
+  EXPECT_TRUE(service()->SyncActive());
+  EXPECT_EQ(l10n_util::GetStringUTF16(IDS_SYNC_TIME_JUST_NOW),
+            service()->GetLastSyncedTimeString());
+
+  // Sign out.
+  service()->DisableForUser();
+  PumpLoop();
+
+  EXPECT_EQ(l10n_util::GetStringUTF16(IDS_SYNC_TIME_NEVER),
+            service()->GetLastSyncedTimeString());
+}
+
 }  // namespace
 }  // namespace browser_sync