diff -up chromium-80.0.3987.106/third_party/webrtc/audio/utility/channel_mixer.cc.missing-cstring chromium-80.0.3987.106/third_party/webrtc/audio/utility/channel_mixer.cc
--- chromium-80.0.3987.106/third_party/webrtc/audio/utility/channel_mixer.cc.missing-cstring	2020-02-21 13:19:47.077683105 -0500
+++ chromium-80.0.3987.106/third_party/webrtc/audio/utility/channel_mixer.cc	2020-02-21 13:19:47.077683105 -0500
@@ -8,6 +8,8 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <cstring>
+
 #include "audio/utility/channel_mixer.h"
 
 #include "audio/utility/channel_mixing_matrix.h"
diff -up chromium-80.0.3987.106/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc.missing-cstring chromium-80.0.3987.106/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
--- chromium-80.0.3987.106/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc.missing-cstring	2020-02-21 13:19:48.171659179 -0500
+++ chromium-80.0.3987.106/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc	2020-02-21 13:19:48.174659113 -0500
@@ -17,6 +17,7 @@
 #include <spa/param/video/raw-utils.h>
 #include <spa/support/type-map.h>
 
+#include <cstring>
 #include <memory>
 #include <utility>
 
diff -up chromium-80.0.3987.106/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc.missing-cstring chromium-80.0.3987.106/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc
--- chromium-80.0.3987.106/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc.missing-cstring	2020-02-21 13:30:09.609068057 -0500
+++ chromium-80.0.3987.106/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc	2020-02-21 13:30:23.791757875 -0500
@@ -10,6 +10,7 @@
 
 #include "modules/video_coding/utility/ivf_file_reader.h"
 
+#include <cstring>
 #include <string>
 #include <vector>