[Sync] Move ModelType and related classes to 'syncer' namespace

sync/syncable/directory_backing_store.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/syncable/directory_backing_store.h"
 
 #include "build/build_config.h"
 
 #include <limits>
 
@@ skipping 526 matching lines @@
   SafeDropTable("models");
   SafeDropTable("temp_models");
   needs_column_refresh_ = false;
 }
 
 // static
 ModelType DirectoryBackingStore::ModelIdToModelTypeEnum(
     const void* data, int size) {
   sync_pb::EntitySpecifics specifics;
   if (!specifics.ParseFromArray(data, size))
-    return syncable::UNSPECIFIED;
-  return syncable::GetModelTypeFromSpecifics(specifics);
+    return syncer::UNSPECIFIED;
+  return syncer::GetModelTypeFromSpecifics(specifics);
 }
 
 // static
 string DirectoryBackingStore::ModelTypeEnumToModelId(ModelType model_type) {
   sync_pb::EntitySpecifics specifics;
-  syncable::AddDefaultFieldValue(model_type, &specifics);
+  syncer::AddDefaultFieldValue(model_type, &specifics);
   return specifics.SerializeAsString();
 }
 
 // static
 std::string DirectoryBackingStore::GenerateCacheGUID() {
   // Generate a GUID with 128 bits of randomness.
   const int kGuidBytes = 128 / 8;
   std::string guid;
   base::Base64Encode(base::RandBytesAsString(kGuidBytes), &guid);
   return guid;
@@ skipping 513 matching lines @@
       "store_birthday TEXT, "
       "db_create_version TEXT, "
       "db_create_time INT, "
       "next_id INT default -2, "
       "cache_guid TEXT )");
   return db_->Execute(query.c_str());
 }
 
 }  // namespace syncable
 }  // namespace syncer