ABANDONED: mash: Move shell delegate interfaces to ash/common

ash/session/session_types.h

Index: ash/session/session_types.h
diff --git a/ash/session/session_types.h b/ash/session/session_types.h
deleted file mode 100644
index c04a0109be338fffc2017da8eaf80204ab039aa9..0000000000000000000000000000000000000000
--- a/ash/session/session_types.h
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2015 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 ASH_SESSION_SESSION_TYPES_H_
-#define ASH_SESSION_SESSION_TYPES_H_
-
-namespace ash {
-
-// The index of the user profile to use. The list is always LRU sorted so that
-// index 0 is the currently active user.
-using UserIndex = int;
-
-}  // namespace ash
-
-#endif  // ASH_SESSION_SESSION_TYPES_H_