diff -up chromium-93.0.4577.63/net/base/test_data_stream.cc.missing-cstring chromium-93.0.4577.63/net/base/test_data_stream.cc
--- chromium-93.0.4577.63/net/base/test_data_stream.cc.missing-cstring	2021-09-03 13:59:54.051831465 +0000
+++ chromium-93.0.4577.63/net/base/test_data_stream.cc	2021-09-03 14:00:05.448414041 +0000
@@ -5,6 +5,7 @@
 #include "net/base/test_data_stream.h"
 
 #include <algorithm>
+#include <cstring>
 
 namespace net {
 
diff -up chromium-93.0.4577.63/third_party/webrtc/audio/utility/channel_mixer.cc.missing-cstring chromium-93.0.4577.63/third_party/webrtc/audio/utility/channel_mixer.cc
--- chromium-93.0.4577.63/third_party/webrtc/audio/utility/channel_mixer.cc.missing-cstring	2021-09-03 12:29:44.105246962 +0000
+++ chromium-93.0.4577.63/third_party/webrtc/audio/utility/channel_mixer.cc	2021-09-03 12:29:44.106246925 +0000
@@ -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-93.0.4577.63/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc.missing-cstring chromium-93.0.4577.63/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc
--- chromium-93.0.4577.63/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc.missing-cstring	2021-09-03 12:29:43.585266089 +0000
+++ chromium-93.0.4577.63/third_party/webrtc/modules/desktop_capture/linux/base_capturer_pipewire.cc	2021-09-03 12:29:43.585266089 +0000
@@ -23,6 +23,7 @@
 #include <sys/mman.h>
 #include <sys/syscall.h>
 
+#include <cstring>
 #include <memory>
 #include <utility>
 
diff -up chromium-93.0.4577.63/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc.missing-cstring chromium-93.0.4577.63/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc
--- chromium-93.0.4577.63/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc.missing-cstring	2021-09-03 12:29:43.275277492 +0000
+++ chromium-93.0.4577.63/third_party/webrtc/modules/video_coding/utility/ivf_file_reader.cc	2021-09-03 12:29:43.273277565 +0000
@@ -10,6 +10,7 @@
 
 #include "modules/video_coding/utility/ivf_file_reader.h"
 
+#include <cstring>
 #include <string>
 #include <vector>