diff -up chromium-80.0.3987.106/chrome/browser/search/background/ntp_backgrounds.h.missing-cstddef chromium-80.0.3987.106/chrome/browser/search/background/ntp_backgrounds.h
--- chromium-80.0.3987.106/chrome/browser/search/background/ntp_backgrounds.h.missing-cstddef	2020-02-18 08:42:38.088243182 -0500
+++ chromium-80.0.3987.106/chrome/browser/search/background/ntp_backgrounds.h	2020-02-18 08:42:59.679782858 -0500
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_SEARCH_BACKGROUND_NTP_BACKGROUNDS_H_
 
 #include <array>
+#include <cstddef>
 
 class GURL;
 
diff -up chromium-80.0.3987.106/media/cdm/supported_cdm_versions.h.missing-cstddef chromium-80.0.3987.106/media/cdm/supported_cdm_versions.h
--- chromium-80.0.3987.106/media/cdm/supported_cdm_versions.h.missing-cstddef	2020-02-17 16:26:51.661246220 -0500
+++ chromium-80.0.3987.106/media/cdm/supported_cdm_versions.h	2020-02-17 16:26:51.662246200 -0500
@@ -6,6 +6,7 @@
 #define MEDIA_CDM_SUPPORTED_CDM_VERSIONS_H_
 
 #include <array>
+#include <cstddef>
 
 #include "media/base/media_export.h"
 #include "media/cdm/api/content_decryption_module.h"
diff -up chromium-80.0.3987.106/third_party/angle/include/platform/Platform.h.missing-cstddef chromium-80.0.3987.106/third_party/angle/include/platform/Platform.h
--- chromium-80.0.3987.106/third_party/angle/include/platform/Platform.h.missing-cstddef	2020-02-17 16:26:07.433130572 -0500
+++ chromium-80.0.3987.106/third_party/angle/include/platform/Platform.h	2020-02-17 16:26:07.434130552 -0500
@@ -11,6 +11,7 @@
 
 #include <stdint.h>
 #include <array>
+#include <cstddef>
 
 #define EGL_PLATFORM_ANGLE_PLATFORM_METHODS_ANGLEX 0x3482
 
diff -up chromium-80.0.3987.106/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h.missing-cstddef chromium-80.0.3987.106/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h
--- chromium-80.0.3987.106/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h.missing-cstddef	2020-02-17 16:23:41.385050827 -0500
+++ chromium-80.0.3987.106/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h	2020-02-17 16:23:41.368051167 -0500
@@ -12,6 +12,7 @@
 #define MODULES_AUDIO_PROCESSING_AEC3_CLOCKDRIFT_DETECTOR_H_
 
 #include <array>
+#include <cstddef>
 
 namespace webrtc {