diff -up chromium-80.0.3987.87/media/cdm/supported_cdm_versions.h.missing-cstddef chromium-80.0.3987.87/media/cdm/supported_cdm_versions.h
--- chromium-80.0.3987.87/media/cdm/supported_cdm_versions.h.missing-cstddef	2020-02-10 12:07:42.863507440 -0500
+++ chromium-80.0.3987.87/media/cdm/supported_cdm_versions.h	2020-02-10 12:07:53.807364746 -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-80.0.3987.87/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h.missing-cstddef chromium-80.0.3987.87/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h
--- chromium-80.0.3987.87/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h.missing-cstddef	2020-02-10 11:11:11.733934021 -0500
+++ chromium-80.0.3987.87/third_party/webrtc/modules/audio_processing/aec3/clockdrift_detector.h	2020-02-10 11:11:11.724934173 -0500
@@ -12,6 +12,7 @@
 #define MODULES_AUDIO_PROCESSING_AEC3_CLOCKDRIFT_DETECTOR_H_
 
 #include <array>
+#include <cstddef>
 
 namespace webrtc {