Switch to standard integer types in content/browser/.

content/browser/gamepad/gamepad_standard_mappings_win.cc

Index: content/browser/gamepad/gamepad_standard_mappings_win.cc
diff --git a/content/browser/gamepad/gamepad_standard_mappings_win.cc b/content/browser/gamepad/gamepad_standard_mappings_win.cc
index c03fe4fbf70a725e7cdf6b8e76db6a1da28c6a43..37723778f13288b5e8c418994b32c4a744fbbd39 100644
--- a/content/browser/gamepad/gamepad_standard_mappings_win.cc
+++ b/content/browser/gamepad/gamepad_standard_mappings_win.cc
@@ -2,6 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <stddef.h>
+
+#include "base/macros.h"
 #include "content/browser/gamepad/gamepad_standard_mappings.h"
 
 namespace content {