Add mojo/c/system/{time.h,wait.h}.

mojo/public/c/system/types.h

 // Copyright 2014 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.
 
-// This file contains types and constants/macros common to different Mojo system
-// APIs.
-// TODO(vtl): Split this file apart (and eliminate).
+// DEPRECATED -- do not use: include individual header files instead.
+//
+// TODO(vtl): Delete this header file.
 //
 // Note: This header should be compilable as C.
 
 #ifndef MOJO_PUBLIC_C_SYSTEM_TYPES_H_
 #define MOJO_PUBLIC_C_SYSTEM_TYPES_H_
 
-#include <stdint.h>
-
-// TODO(vtl): These includes are here only for historic reasons. If you actually
-// need either, please include it directly.
 #include "mojo/public/c/system/handle.h"
 #include "mojo/public/c/system/result.h"
-
-// TODO(vtl): Notes: Use of undefined flags will lead to undefined behavior
-// (typically they'll be ignored), not necessarily an error.
-
-// |MojoTimeTicks|: A time delta, in microseconds, the meaning of which is
-// source-dependent.
-
-typedef int64_t MojoTimeTicks;
-
-// |MojoDeadline|: Used to specify deadlines (timeouts), in microseconds (except
-// for |MOJO_DEADLINE_INDEFINITE|).
-//   |MOJO_DEADLINE_INDEFINITE| - Used to indicate "forever".
-
-typedef uint64_t MojoDeadline;
-
-#define MOJO_DEADLINE_INDEFINITE ((MojoDeadline)-1)
+#include "mojo/public/c/system/time.h"
 
 #endif  // MOJO_PUBLIC_C_SYSTEM_TYPES_H_