webengine: add patch for python 3.11 build issue

yocto master branch updated python to 3.11, resulting
in webengine build error(s):

"File "/home/qt/work/build/build/tmp/work/cortexa15t2hf-neon-poky-linux-gnueabi/qtwebengine/6.4.1-r0/git/src/3rdparty/chromium/tools/grit/grit/util.py", line 214, in ReadFile
with io.open(filename, mode, encoding=encoding) as f:
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ValueError: invalid mode: 'rU'"

Add patch from chromium upstream.

Change-Id: I6308d2acd17a74b20ad6651d59f34e7246dc96ef
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Ari Parkkila <ari.parkkila@qt.io>
(cherry picked from commit 676e6da41b8ed42ce32a6b85fac792413bd2a35f)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 51 insertions, 0 deletions

diff --git a/recipes-qt/qt6/qtwebengine.inc b/recipes-qt/qt6/qtwebengine.inc
index c62bd3f..3efc196 100644
--- a/recipes-qt/qt6/qtwebengine.inc
+++ b/recipes-qt/qt6/qtwebengine.inc
@@ -36,6 +36,7 @@ SRC_URI += " \
 SRC_URI += " \
     file://chromium/0001-v8-qemu-wrapper.patch;patchdir=src/3rdparty \
     file://chromium/0002-chromium-workaround-for-too-long-.rps-file-name.patch;patchdir=src/3rdparty \
+    file://chromium/0003-Fix-build-in-Python-3.11-invalid-mode-rU.patch;patchdir=src/3rdparty \
 "
 
 SRCREV_FORMAT = "qtwebengine_qtwebengine-chromium"
diff --git a/recipes-qt/qt6/qtwebengine/chromium/0003-Fix-build-in-Python-3.11-invalid-mode-rU.patch b/recipes-qt/qt6/qtwebengine/chromium/0003-Fix-build-in-Python-3.11-invalid-mode-rU.patch
new file mode 100644
index 0000000..9ab3787
--- /dev/null
+++ b/recipes-qt/qt6/qtwebengine/chromium/0003-Fix-build-in-Python-3.11-invalid-mode-rU.patch
@@ -0,0 +1,50 @@
+From a0cabac19789a4e88c86407970ea3b3d2929006b Mon Sep 17 00:00:00 2001
+From: Joanmarie Diggs <jdiggs@igalia.com>
+Date: Tue, 30 Aug 2022 06:00:13 +0000
+Subject: [PATCH] Fix build in Python 3.11 (invalid mode: 'rU')
+
+In Python 3.11, 'U' ("universal newline") is no longer accepted in
+the file mode, having been deprecated in Python 3.3. The "universal
+newline" is used by default when a file is open in text mode.
+
+This commit removes the 'U' from the two (non-third-party) places
+it is used.
+
+Bug: 1357549
+Change-Id: I3305707858d8ba7a9f518656a9b97dc1702bbe94
+Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3859535
+Reviewed-by: Mike Pinkerton <pinkerton@chromium.org>
+Commit-Queue: Joanmarie Diggs <jdiggs@igalia.com>
+Reviewed-by: Nico Weber <thakis@chromium.org>
+Cr-Commit-Position: refs/heads/main@{#1040794}
+---
+ chromium/PRESUBMIT_test_mocks.py | 2 +-
+ chromium/tools/grit/grit/util.py | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/chromium/PRESUBMIT_test_mocks.py b/chromium/PRESUBMIT_test_mocks.py
+index b7d1b482c5f..7304697b117 100644
+--- a/chromium/PRESUBMIT_test_mocks.py
++++ b/chromium/PRESUBMIT_test_mocks.py
+@@ -128,7 +128,7 @@ class MockInputApi(object):
+   def PresubmitLocalPath(self):
+     return self.presubmit_local_path
+ 
+-  def ReadFile(self, filename, mode='rU'):
++  def ReadFile(self, filename, mode='r'):
+     if hasattr(filename, 'AbsoluteLocalPath'):
+        filename = filename.AbsoluteLocalPath()
+     for file_ in self.files:
+diff --git a/chromium/tools/grit/grit/util.py b/chromium/tools/grit/grit/util.py
+index 98433d154c0..98e770b8533 100644
+--- a/chromium/tools/grit/grit/util.py
++++ b/chromium/tools/grit/grit/util.py
+@@ -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()