[Sync] Add support for proxy types

sync/internal_api/sync_manager_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/internal_api/sync_manager_impl.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 553 matching lines @@
     return false;
 
   return true;
 }
 
 bool SyncManagerImpl::PurgePartiallySyncedTypes() {
   ModelTypeSet partially_synced_types = ModelTypeSet::All();
   partially_synced_types.RemoveAll(InitialSyncEndedTypes());
   partially_synced_types.RemoveAll(GetTypesWithEmptyProgressMarkerToken(
       ModelTypeSet::All()));
+  partially_synced_types.RemoveAll(LocalTypes());
 
   DVLOG(1) << "Purging partially synced types "
            << ModelTypeSetToString(partially_synced_types);
   UMA_HISTOGRAM_COUNTS("Sync.PartiallySyncedTypes",
                        partially_synced_types.Size());
   if (partially_synced_types.Empty())
     return true;
   return directory()->PurgeEntriesWithTypeIn(partially_synced_types);
 }
 
 bool SyncManagerImpl::PurgeDisabledTypes(
     ModelTypeSet previously_enabled_types,
     ModelTypeSet currently_enabled_types) {
   ModelTypeSet disabled_types = Difference(previously_enabled_types,
                                            currently_enabled_types);
+  disabled_types.RemoveAll(LocalTypes());
   if (disabled_types.Empty())
     return true;
 
   DVLOG(1) << "Purging disabled types "
            << ModelTypeSetToString(disabled_types);
   return directory()->PurgeEntriesWithTypeIn(disabled_types);
 }
 
 void SyncManagerImpl::UpdateCredentials(
     const SyncCredentials& credentials) {
@@ skipping 757 matching lines @@
 int SyncManagerImpl::GetDefaultNudgeDelay() {
   return kDefaultNudgeDelayMilliseconds;
 }
 
 // static.
 int SyncManagerImpl::GetPreferencesNudgeDelay() {
   return kPreferencesNudgeDelayMilliseconds;
 }
 
 }  // namespace syncer