Revert of [Sync] Refactoring polling to be reliable.

sync/test/engine/fake_sync_scheduler.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 "sync/test/engine/fake_sync_scheduler.h"
 
 namespace syncer {
 
 FakeSyncScheduler::FakeSyncScheduler() {}
 
 FakeSyncScheduler::~FakeSyncScheduler() {}
 
-void FakeSyncScheduler::Start(Mode mode, base::Time last_poll_time) {
+void FakeSyncScheduler::Start(Mode mode) {
 }
 
 void FakeSyncScheduler::Stop() {
 }
 
 void FakeSyncScheduler::ScheduleLocalNudge(
     ModelTypeSet types,
     const tracked_objects::Location& nudge_location) {
 }
 
@@ skipping 59 matching lines @@
 }
 
 void FakeSyncScheduler::OnReceivedGuRetryDelay(
     const base::TimeDelta& delay) {
 }
 
 void FakeSyncScheduler::OnReceivedMigrationRequest(ModelTypeSet types) {
 }
 
 }  // namespace syncer