[Sync] Remove unneeded 'using syncer::' lines and 'syncer::' scopings

sync/engine/apply_updates_command.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/apply_updates_command.h"
 
 #include "base/location.h"
 #include "sync/engine/update_applicator.h"
 #include "sync/sessions/sync_session.h"
 #include "sync/syncable/directory.h"
 #include "sync/syncable/read_transaction.h"
 #include "sync/syncable/write_transaction.h"
 
 namespace syncer {
 
 using sessions::SyncSession;
 
 ApplyUpdatesCommand::ApplyUpdatesCommand() {}
 ApplyUpdatesCommand::~ApplyUpdatesCommand() {}
 
 std::set<ModelSafeGroup> ApplyUpdatesCommand::GetGroupsToChange(
     const sessions::SyncSession& session) const {
   std::set<ModelSafeGroup> groups_with_unapplied_updates;
 
-  syncer::FullModelTypeSet server_types_with_unapplied_updates;
+  FullModelTypeSet server_types_with_unapplied_updates;
   {
     syncable::Directory* dir = session.context()->directory();
     syncable::ReadTransaction trans(FROM_HERE, dir);
     server_types_with_unapplied_updates =
         dir->GetServerTypesWithUnappliedUpdates(&trans);
   }
 
-  for (syncer::FullModelTypeSet::Iterator it =
+  for (FullModelTypeSet::Iterator it =
            server_types_with_unapplied_updates.First(); it.Good(); it.Inc()) {
     groups_with_unapplied_updates.insert(
         GetGroupForModelType(it.Get(), session.routing_info()));
   }
 
   return groups_with_unapplied_updates;
 }
 
 SyncerError ApplyUpdatesCommand::ModelChangingExecuteImpl(
     SyncSession* session) {
   syncable::Directory* dir = session->context()->directory();
   syncable::WriteTransaction trans(FROM_HERE, syncable::SYNCER, dir);
 
   // Compute server types with unapplied updates that fall under our
   // group restriction.
-  const syncer::FullModelTypeSet server_types_with_unapplied_updates =
+  const FullModelTypeSet server_types_with_unapplied_updates =
       dir->GetServerTypesWithUnappliedUpdates(&trans);
-  syncer::FullModelTypeSet server_type_restriction;
-  for (syncer::FullModelTypeSet::Iterator it =
+  FullModelTypeSet server_type_restriction;
+  for (FullModelTypeSet::Iterator it =
            server_types_with_unapplied_updates.First(); it.Good(); it.Inc()) {
     if (GetGroupForModelType(it.Get(), session->routing_info()) ==
         session->status_controller().group_restriction()) {
       server_type_restriction.Put(it.Get());
     }
   }
 
   std::vector<int64> handles;
   dir->GetUnappliedUpdateMetaHandles(
       &trans, server_type_restriction, &handles);
 
   UpdateApplicator applicator(
       session->context()->resolver(),
       dir->GetCryptographer(&trans),
       handles.begin(), handles.end(), session->routing_info(),
       session->status_controller().group_restriction());
   while (applicator.AttemptOneApplication(&trans)) {}
   applicator.SaveProgressIntoSessionState(
       session->mutable_status_controller()->mutable_conflict_progress(),
       session->mutable_status_controller()->mutable_update_progress());
 
   // This might be the first time we've fully completed a sync cycle, for
   // some subset of the currently synced datatypes.
   const sessions::StatusController& status(session->status_controller());
   if (status.ServerSaysNothingMoreToDownload()) {
-    for (syncer::ModelTypeSet::Iterator it =
+    for (ModelTypeSet::Iterator it =
              status.updates_request_types().First(); it.Good(); it.Inc()) {
       // This gets persisted to the directory's backing store.
       dir->set_initial_sync_ended_for_type(it.Get(), true);
     }
   }
 
   return SYNCER_OK;
 }
 
 }  // namespace syncer