Handle birthday errors by disabling sync and deleting sync data.

chrome/browser/sync/engine/syncer_unittest.cc

 // Copyright (c) 2009 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.
 //
 // Syncer unit tests. Unfortunately a lot of these tests
 // are outdated and need to be reworked and updated.
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 96 matching lines @@
     return false;
   }
   virtual void OnReceivedLongPollIntervalUpdate(
       const base::TimeDelta& new_interval) {
     last_long_poll_interval_received_ = new_interval;
   }
   virtual void OnReceivedShortPollIntervalUpdate(
       const base::TimeDelta& new_interval) {
     last_short_poll_interval_received_ = new_interval;
   }
+  virtual void OnShouldStopSyncingPermanently() {
+  }
 
   // ModelSafeWorkerRegistrar implementation.
   virtual void GetWorkers(std::vector<ModelSafeWorker*>* out) {
     out->push_back(worker_.get());
   }
 
   virtual void GetModelSafeRoutingInfo(ModelSafeRoutingInfo* out) {
     // We're just testing the sync engine here, so we shunt everything to
     // the SyncerThread.  Datatypes which aren't enabled aren't in the map.
     for (int i = 0; i < syncable::MODEL_TYPE_COUNT; ++i) {
@@ skipping 4225 matching lines @@
   Add(low_id_);
   Add(high_id_);
   syncer_->SyncShare(this);
   ExpectLocalOrderIsByServerId();
 }
 
 const SyncerTest::CommitOrderingTest
 SyncerTest::CommitOrderingTest::LAST_COMMIT_ITEM = {-1, TestIdFactory::root()};
 
 }  // namespace browser_sync