diff -up chromium-103.0.5060.53/tools/grit/grit/util.py.fix-python3 chromium-103.0.5060.53/tools/grit/grit/util.py
--- chromium-103.0.5060.53/tools/grit/grit/util.py.fix-python3	2022-06-30 19:38:05.483590098 +0000
+++ chromium-103.0.5060.53/tools/grit/grit/util.py	2022-06-30 19:38:14.024304827 +0000
@@ -209,7 +209,7 @@ def ReadFile(filename, encoding):
     mode = 'rb'
     encoding = None
   else:
-    mode = 'rU'
+    mode = 'r'
 
   with io.open(filename, mode, encoding=encoding) as f:
     return f.read()