[Sync] Move //components/sync to the syncer namespace.

components/sync/syncable/syncable_write_transaction.cc

 // Copyright 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 "components/sync/syncable/syncable_write_transaction.h"
 
 #include <stdint.h>
 
 #include <string>
 
@@ skipping 110 matching lines @@
 }
 
 void WriteTransaction::NotifyTransactionComplete(
     ModelTypeSet models_with_changes) {
   directory_->kernel()->delegate->HandleTransactionCompleteChangeEvent(
       models_with_changes);
 }
 
 void WriteTransaction::UpdateTransactionVersion(
     const std::vector<int64_t>& entry_changed) {
-  syncer::ModelTypeSet type_seen;
+  ModelTypeSet type_seen;
   for (uint32_t i = 0; i < entry_changed.size(); ++i) {
     MutableEntry entry(this, GET_BY_HANDLE, entry_changed[i]);
     if (entry.good()) {
       ModelType type = GetModelTypeFromSpecifics(entry.GetSpecifics());
       if (type < FIRST_REAL_MODEL_TYPE)
         continue;
       if (!type_seen.Has(type)) {
         directory_->IncrementTransactionVersion(type);
         type_seen.Put(type);
       }
@@ skipping 45 matching lines @@
     ENUM_CASE(SYNCAPI);
   }
   NOTREACHED();
   return std::string();
 }
 
 #undef ENUM_CASE
 
 }  // namespace syncable
 }  // namespace syncer