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

mojo/public/cpp/system/handle.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.
 
 #ifndef MOJO_PUBLIC_CPP_SYSTEM_HANDLE_H_
 #define MOJO_PUBLIC_CPP_SYSTEM_HANDLE_H_
 
 #include <assert.h>
 #include <limits>
 
-#include "mojo/public/c/system/functions.h"
 #include "mojo/public/c/system/handle.h"
 #include "mojo/public/c/system/result.h"
-#include "mojo/public/c/system/types.h"
+#include "mojo/public/c/system/time.h"
+#include "mojo/public/c/system/wait.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 
 // OVERVIEW
 //
 // |Handle| and |...Handle|:
 //
 // |Handle| is a simple, copyable wrapper for the C type |MojoHandle| (which is
 // just an integer). Its purpose is to increase type-safety, not provide
@@ skipping 258 matching lines @@
 }
 
 // Strict weak ordering, so that |Handle|s can be used as keys in |std::map|s,
 inline bool operator<(const Handle a, const Handle b) {
   return a.value() < b.value();
 }
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_SYSTEM_HANDLE_H_