Skeleton of the overall design for the database for Pver4

components/safe_browsing_db/v4_store.h

Index: components/safe_browsing_db/v4_store.h
diff --git a/components/safe_browsing_db/v4_store.h b/components/safe_browsing_db/v4_store.h
new file mode 100644
index 0000000000000000000000000000000000000000..be9ff9da954843a17fa8704f90d753b22d62bc3f
--- /dev/null
+++ b/components/safe_browsing_db/v4_store.h
@@ -0,0 +1,15 @@
+// Copyright 2016 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.
+
+#ifndef COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_
+#define COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_
+
+namespace safe_browsing {
+
+class V4Store {
+};
+
+}  // namespace safe_browsing
+
+#endif  // COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_