[Sync] Add SyncEncryptionHandler

sync/syncable/nigori_handler.cc

Index: sync/syncable/nigori_handler.cc
diff --git a/sync/syncable/nigori_handler.cc b/sync/syncable/nigori_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e193c893ddef4e584f49bfaa98a5c2c515b6ddde
--- /dev/null
+++ b/sync/syncable/nigori_handler.cc
@@ -0,0 +1,14 @@
+// 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/nigori_handler.h"
+
+namespace syncer {
+namespace syncable {
+
+NigoriHandler::NigoriHandler() {}
+NigoriHandler::~NigoriHandler() {}
+
+}  // namespace syncer
+}  // namespace syncable