[Sync] Move reenable logic into DTM

sync/engine/sync_scheduler_impl.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/engine/sync_scheduler_impl.h"
 
 #include <algorithm>
 #include <cstring>
 
 #include "base/auto_reset.h"
@@ skipping 125 matching lines @@
 
 const int kDefaultSessionsCommitDelaySeconds = 10;
 
 bool IsConfigRelatedUpdateSourceValue(
     GetUpdatesCallerInfo::GetUpdatesSource source) {
   switch (source) {
     case GetUpdatesCallerInfo::RECONFIGURATION:
     case GetUpdatesCallerInfo::MIGRATION:
     case GetUpdatesCallerInfo::NEW_CLIENT:
     case GetUpdatesCallerInfo::NEWLY_SUPPORTED_DATATYPE:
+    case GetUpdatesCallerInfo::PROGRAMMATIC:
       return true;
     default:
       return false;
   }
 }
 
 }  // namespace
 
 SyncSchedulerImpl::SyncSchedulerImpl(const std::string& name,
                                      BackoffDelayProvider* delay_provider,
@@ skipping 762 matching lines @@
 
 #undef SDVLOG_LOC
 
 #undef SDVLOG
 
 #undef SLOG
 
 #undef ENUM_CASE
 
 }  // namespace syncer