Revert of [Sync] Refactoring polling to be reliable.

sync/internal_api/sync_rollback_manager_base.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 "sync/internal_api/sync_rollback_manager_base.h"
 
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/read_node.h"
 #include "sync/internal_api/public/read_transaction.h"
 #include "sync/internal_api/public/write_transaction.h"
@@ skipping 68 matching lines @@
 bool SyncRollbackManagerBase::PurgePartiallySyncedTypes() {
   NOTREACHED();
   return true;
 }
 
 void SyncRollbackManagerBase::UpdateCredentials(
     const SyncCredentials& credentials) {
 }
 
 void SyncRollbackManagerBase::StartSyncingNormally(
-    const ModelSafeRoutingInfo& routing_info, base::Time last_poll_time){
+    const ModelSafeRoutingInfo& routing_info){
 }
 
 void SyncRollbackManagerBase::ConfigureSyncer(
       ConfigureReason reason,
       ModelTypeSet to_download,
       ModelTypeSet to_purge,
       ModelTypeSet to_journal,
       ModelTypeSet to_unapply,
       const ModelSafeRoutingInfo& new_routing_info,
       const base::Closure& ready_task,
@@ skipping 218 matching lines @@
 
 void SyncRollbackManagerBase::UnregisterDirectoryTypeDebugInfoObserver(
     syncer::TypeDebugInfoObserver* observer) {}
 
 bool SyncRollbackManagerBase::HasDirectoryTypeDebugInfoObserver(
     syncer::TypeDebugInfoObserver* observer) { return false; }
 
 void SyncRollbackManagerBase::RequestEmitDebugInfo() {}
 
 }  // namespace syncer