Support building binder/ with Bazel (bzlmod only)

Author: jdcormie

.bazelrc

@@ -1,3 +1,3 @@
 build --cxxopt=-std=c++17 --host_cxxopt=-std=c++17
 
-common:skip_android --deleted_packages=android
+common:skip_android --deleted_packages=android,binder

binder/BUILD.bazel

@@ -0,0 +1,29 @@
+load("@rules_android//rules:rules.bzl", "android_library")
+load("@rules_jvm_external//:defs.bzl", "artifact")
+
+licenses(["notice"])
+
+android_library(
+    name = "binder",
+    srcs = glob([
+        "src/main/java/**/*.java",
+    ]),
+    manifest = "src/main/AndroidManifest.xml",
+    custom_package = "io.grpc.binder",
+    # TODO(jdcormie): Figure out how to make this public without forcing
+    # existing non-android users to configure rules_android and Google's maven.
+    visibility = ["//:__subpackages__"],
+    exports = ["@grpc_android_maven//:androidx_annotation_annotation"],
+    deps = [
+        "//api",
+        "//core:internal",
+        # Resolve android deps from the isolated grpc_android_maven repository.
+        "@grpc_android_maven//:androidx_annotation_annotation",
+        "@grpc_android_maven//:androidx_annotation_annotation_jvm",
+        "@grpc_android_maven//:androidx_core_core",
+        "@grpc_android_maven//:androidx_lifecycle_lifecycle_common",
+        artifact("com.google.code.findbugs:jsr305"),
+        artifact("com.google.errorprone:error_prone_annotations"),
+        artifact("com.google.guava:guava"),
+    ],
+)

buildscripts/kokoro/android.sh

@@ -47,7 +47,8 @@ export PATH=/tmp/bazelisk:$PATH
 
 export USE_BAZEL_VERSION=9.1.0
 bazelisk build \
-  //android
+  //android \
+  //binder
 
 curl -Ls https://github.com/Kitware/CMake/releases/download/v3.26.3/cmake-3.26.3-linux-x86_64.tar.gz | \
     tar xz -C /tmp