[Sync] Rename csync namespace to syncer

sync/syncable/model_type.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/public/syncable/model_type.h"
 
 #include "base/string_split.h"
 #include "base/values.h"
 #include "sync/engine/syncproto.h"
 #include "sync/protocol/app_notification_specifics.pb.h"
@@ skipping 128 matching lines @@
       NOTREACHED() << "No known extension for model type.";
       return 0;
   }
   NOTREACHED() << "Needed for linux_keep_shadow_stacks because of "
                << "http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20681";
   return 0;
 }
 
 // Note: keep this consistent with GetModelType in syncable.cc!
 ModelType GetModelType(const sync_pb::SyncEntity& sync_pb_entity) {
-  const csync::SyncEntity& sync_entity =
-      static_cast<const csync::SyncEntity&>(sync_pb_entity);
+  const syncer::SyncEntity& sync_entity =
+      static_cast<const syncer::SyncEntity&>(sync_pb_entity);
   DCHECK(!sync_entity.id().IsRoot());  // Root shouldn't ever go over the wire.
 
   if (sync_entity.deleted())
     return UNSPECIFIED;
 
   // Backwards compatibility with old (pre-specifics) protocol.
   if (sync_entity.has_bookmarkdata())
     return BOOKMARKS;
 
   ModelType specifics_type = GetModelTypeFromSpecifics(sync_entity.specifics());
@@ skipping 372 matching lines @@
     *model_type = UNSPECIFIED;
     return false;
   }
 }
 
 bool IsRealDataType(ModelType model_type) {
   return model_type >= FIRST_REAL_MODEL_TYPE && model_type < MODEL_TYPE_COUNT;
 }
 
 }  // namespace syncable