Switch to standard integer types in rlz/.

rlz/lib/machine_id.cc

 // 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 "rlz/lib/machine_id.h"
 
+#include <stddef.h>
+
 #include "base/sha1.h"
 #include "rlz/lib/assert.h"
 #include "rlz/lib/crc8.h"
 #include "rlz/lib/string_utils.h"
 
 namespace rlz_lib {
 
 bool GetMachineId(std::string* machine_id) {
   if (!machine_id)
     return false;
@@ skipping 58 matching lines @@
                             kSizeWithoutChecksum,
                             &id_binary[kSizeWithoutChecksum]);
 
   return rlz_lib::BytesToString(
       id_binary.c_str(), kSizeWithoutChecksum + 1, machine_id);
 }
 
 }  // namespace testing
 
 }  // namespace rlz_lib