Migrate away from @bazel_tools//tools/android:android_extensions.bzl

PiperOrigin-RevId: 634374307
Change-Id: I6393cf7ddfa67cda31d5053d2e096f37f0b2755c

MODULE.bazel

@@ -97,7 +97,7 @@ use_repo(
     "rules_android_maven",
 )
 
-remote_android_extensions = use_extension("@bazel_tools//tools/android:android_extensions.bzl", "remote_android_tools_extensions")
+remote_android_extensions = use_extension("//bzlmod_extensions:android_extensions.bzl", "remote_android_tools_extensions")
 use_repo(remote_android_extensions, "android_gmaven_r8", "android_tools")
 
 # integration test setup

bzlmod_extensions/android_extensions.bzl

@@ -0,0 +1,34 @@
+# Copyright 2022 The Bazel Authors. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Module extension to declare Android runtime dependencies for Bazel."""
+
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_jar")
+
+def _remote_android_tools_extensions_impl(module_ctx):
+    http_archive(
+        name = "android_tools",
+        sha256 = "d7cdfc03f3ad6571b7719f4355379177a4bde68d17dca2bdbf6c274d72e4d6cf",
+        url = "https://mirror.bazel.build/bazel_android_tools/android_tools_pkg-0.31.0.tar",
+    )
+    http_jar(
+        name = "android_gmaven_r8",
+        sha256 = "59753e70a74f918389cc87f1b7d66b5c0862932559167425708ded159e3de439",
+        url = "https://maven.google.com/com/android/tools/r8/8.3.37/r8-8.3.37.jar",
+    )
+    return module_ctx.extension_metadata(reproducible = True)
+
+remote_android_tools_extensions = module_extension(
+    implementation = _remote_android_tools_extensions_impl,
+)

examples/basicapp/MODULE.bazel

@@ -5,9 +5,6 @@ module(
 bazel_dep(name = "rules_java", version = "7.4.0")
 bazel_dep(name = "bazel_skylib", version = "1.3.0")
 
-remote_android_extensions = use_extension("@bazel_tools//tools/android:android_extensions.bzl", "remote_android_tools_extensions")
-use_repo(remote_android_extensions, "android_gmaven_r8", "android_tools")
-
 bazel_dep(
     name = "rules_android",
     version = "0.2.0",