Simulate transient error and verify exponential backoff.

chrome/browser/sync/backend_migrator_unittest.cc

 // Copyright (c) 2011 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 "chrome/browser/sync/backend_migrator.h"
 
 #include "chrome/browser/sync/glue/data_type_manager_mock.h"
 #include "chrome/browser/sync/profile_sync_service_mock.h"
 #include "chrome/browser/sync/sessions/session_state.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 36 matching lines @@
   void ReturnNonEmptyProgressMarkersInSnapshot(
       const syncable::ModelTypeSet& for_types) {
     std::string download_progress_markers[syncable::MODEL_TYPE_COUNT];
     for (syncable::ModelTypeSet::const_iterator it = for_types.begin();
          it != for_types.end(); ++it) {
       download_progress_markers[*it] = "foobar";
     }
 
     snap_.reset(new SyncSessionSnapshot(SyncerStatus(), ErrorCounters(),
         0, false, syncable::ModelTypeBitSet(), download_progress_markers,
-        false, false, 0, 0, 0, false, sessions::SyncSourceInfo(), 0));
+        false, false, 0, 0, 0, false, sessions::SyncSourceInfo(), 0,
+        base::Time::Now()));
     EXPECT_CALL(service_, GetLastSessionSnapshot())
         .WillOnce(Return(snap_.get()));
   }
 
   void SendConfigureDone(DataTypeManager::ConfigureStatus status,
                          const syncable::ModelTypeSet& types) {
     if (status == DataTypeManager::OK) {
       DataTypeManager::ConfigureResult result(status, types);
       NotificationService::current()->Notify(
           chrome::NOTIFICATION_SYNC_CONFIGURE_DONE,
@@ skipping 241 matching lines @@
   EXPECT_CALL(*manager(), state())
       .WillOnce(Return(DataTypeManager::CONFIGURED));
   EXPECT_CALL(*manager(), Configure(_, sync_api::CONFIGURE_REASON_MIGRATION))
               .Times(1);
   migrator.MigrateTypes(to_migrate);
   SendConfigureDone(DataTypeManager::ABORTED, syncable::ModelTypeSet());
   EXPECT_EQ(BackendMigrator::IDLE, migrator.state());
 }
 
 };  // namespace browser_sync