Switch to standard integer types in chrome/browser/, part 2 of 4.

chrome/browser/manifest/manifest_icon_selector.cc

 // 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.
 
 #include "chrome/browser/manifest/manifest_icon_selector.h"
 
+#include <stddef.h>
+
 #include <algorithm>
 #include <cmath>
 #include <limits>
 
 #include "base/strings/utf_string_conversions.h"
 #include "components/mime_util/mime_util.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/gfx/screen.h"
 
 using content::Manifest;
@@ skipping 161 matching lines @@
   std::vector<Manifest::Icon> icons =
       ManifestIconSelector::FilterIconsByType(unfiltered_icons);
 
   ManifestIconSelector selector(ideal_icon_size_in_px,
                                 minimum_icon_size_in_px);
   int index = selector.FindBestMatchingIcon(icons, device_scale_factor);
   if (index == -1)
     return GURL();
   return icons[index].src;
 }