Switch to standard integer types in components/, part 4 of 4.

components/storage_monitor/mtab_watcher_linux.cc

 // 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.
 
 // MtabWatcherLinux implementation.
 
 #include "components/storage_monitor/mtab_watcher_linux.h"
 
 #include <mntent.h>
+#include <stddef.h>
 #include <stdio.h>
 
 #include "base/bind.h"
+#include "base/macros.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace {
 
 // List of file systems we care about.
 const char* const kKnownFileSystems[] = {
   "btrfs",
   "ext2",
   "ext3",
   "ext4",
@@ skipping 74 matching lines @@
   }
   if (error) {
     LOG(ERROR) << "Error watching " << mtab_path_.value();
     return;
   }
 
   ReadMtab();
 }
 
 }  // namespace storage_monitor