Switch to standard integer types in extensions/.

extensions/renderer/user_script_set.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.
 
 #include "extensions/renderer/user_script_set.h"
 
+#include <stddef.h>
+
 #include <utility>
 
 #include "base/memory/ref_counted.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extensions_client.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "extensions/renderer/extension_injection_host.h"
@@ skipping 207 matching lines @@
       !script->js_scripts().empty() && script->run_location() == run_location;
   if (inject_css || inject_js) {
     injection.reset(new ScriptInjection(std::move(injector), render_frame,
                                         std::move(injection_host),
                                         run_location));
   }
   return injection;
 }
 
 }  // namespace extensions