Description: fix build with Python 3.11
Author: Dmitry Shachnev <mitya57@debian.org>
Last-Update: 2023-01-08

--- a/src/3rdparty/chromium/tools/grit/grit/util.py
+++ b/src/3rdparty/chromium/tools/grit/grit/util.py
@@ -211,7 +211,7 @@ def ReadFile(filename, encoding):
     mode = 'rb'
     encoding = None
   else:
-    mode = 'rU'
+    mode = 'r'
 
   with io.open(abs(filename), mode, encoding=encoding) as f:
     return f.read()
--- a/src/3rdparty/chromium/tools/metrics/structured/model.py
+++ b/src/3rdparty/chromium/tools/metrics/structured/model.py
@@ -26,7 +26,7 @@ _METRIC_TYPE =  models.ObjectNodeType(
     'metric',
     attributes=[
       ('name', unicode, r'^[A-Za-z0-9_.]+$'),
-      ('kind', unicode, r'^(?i)(|hashed-string|int)$'),
+      ('kind', unicode, r'(?i)^(|hashed-string|int)$'),
     ],
     alphabetization=[
         (_OBSOLETE_TYPE.tag, lambda _: 1),
--- a/src/3rdparty/chromium/tools/metrics/ukm/ukm_model.py
+++ b/src/3rdparty/chromium/tools/metrics/ukm/ukm_model.py
@@ -42,7 +42,7 @@ _INDEX_TYPE = models.ObjectNodeType(
 _STATISTICS_TYPE =  models.ObjectNodeType(
     'statistics',
     attributes=[
-      ('export', str, r'^(?i)(|true|false)$'),
+      ('export', str, r'(?i)^(|true|false)$'),
     ],
     children=[
         models.ChildType(_QUANTILES_TYPE.tag, _QUANTILES_TYPE, multiple=False),
@@ -94,7 +94,7 @@ _EVENT_TYPE =  models.ObjectNodeType(
     'event',
     attributes=[
       ('name', str, r'^[A-Za-z0-9.]+$'),
-      ('singular', str, r'^(?i)(|true|false)$'),
+      ('singular', str, r'(?i)^(|true|false)$'),
     ],
     alphabetization=[
         (_OBSOLETE_TYPE.tag, _KEEP_ORDER),