[canary] Add a .vpython3 wheels file for B🚀 (#28480)

This PR reverts the use of `DEPS` to manage python dependencies, and
rather introduces a `.vpython3` file to deploy wheels to run `brockit`
with vpython in our CI.

This PR also has an extra fix for a rare, but possible checkout failure
with the issue https://github.com/brave/brave-browser/issues/44921. This
can happen because git requires this type of notation to retain the
reference locally.

Resolves https://github.com/brave/brave-browser/issues/45120

Resolves https://github.com/brave/brave-browser/issues/45201

DEPS

@@ -114,14 +114,6 @@ hooks = [
     # least macOS due to permission issues.
     'action': ['python3', '-m', 'pip', '-q', '--disable-pip-version-check', 'install', '-U', '-t', 'third_party/cryptography', '--only-binary', 'cryptography', 'cryptography==37.0.4'],
   },
-  {
-    # Installing these dependencies as we need these tools to be able to run in
-    # the CI, and vpython provides a good way to avoid pip install calls when
-    # in sensitive contexts.
-    'name': 'update_cr_tools_pip',
-    'pattern': '.',
-    'action': ['python3', '-m', 'pip', '-q', '--disable-pip-version-check', 'install', '-r', 'tools/cr/requirements.txt'],
-  },
   {
     'name': 'wireguard_nt',
     'pattern': '.',

build/commands/lib/syncUtils.js

@@ -196,7 +196,9 @@ function syncChromium(program) {
     // being passed to gclient.
     if (util.runGit(config.srcDir, ['rev-parse', requiredChromiumRef], true) ==
         null) {
-      util.runGit(config.srcDir, ['fetch', 'origin', requiredChromiumRef])
+      util.runGit(
+          config.srcDir,
+          ['fetch', 'origin', requiredChromiumRef + ':' + requiredChromiumRef])
     }
     util.runGit(config.srcDir, ['reset', '--hard', requiredChromiumRef])
   }

tools/cr/.vpython3

@@ -0,0 +1,43 @@
+# Copyright (c) 2025 The Brave Authors. All rights reserved.
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at https://mozilla.org/MPL/2.0/.
+
+python_version: "3.11"
+
+wheel: <
+  name: "infra/python/wheels/charset_normalizer-py3"
+  version: "version:3.3.2"
+>
+wheel: <
+  name: "infra/python/wheels/certifi-py3"
+  version: "version:2024.7.4"
+>
+wheel: <
+  name: "infra/python/wheels/idna-py3"
+  version: "version:3.4"
+>
+wheel: <
+  name: "infra/python/wheels/markdown-it-py-py3"
+  version: "version:2.1.0"
+>
+wheel: <
+  name: "infra/python/wheels/mdurl-py3"
+  version: "version:0.1.2"
+>
+wheel: <
+  name: "infra/python/wheels/pygments-py3"
+  version: "version:2.14.0"
+>
+wheel: <
+  name: "infra/python/wheels/requests-py3"
+  version: "version:2.31.0"
+>
+wheel: <
+  name: "infra/python/wheels/rich-py3"
+  version: "version:13.2.0"
+>
+wheel: <
+  name: "infra/python/wheels/urllib3-py3"
+  version: "version:2.1.0"
+>

tools/cr/brockit.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python3
+#!/usr/bin/env vpython3
 # Copyright (c) 2024 The Brave Authors. All rights reserved.
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this file,

tools/cr/requirements.txt

@@ -1,2 +0,0 @@
-rich==13.9.4
-requests==2.32.3