Launcher3: Introduce lint checks for Launcher3.

  As part of the initial check in, add a test to ensure
  that custom Dialogs are not utilized inside of the codebase.

Bug: 389709580
Test: DialogDetectorTest
Flag: NONE Lint checks
Change-Id: I7e3f98c729cdbf4d062419c53a209d12a23b1806
diff --git a/checks/Android.bp b/checks/Android.bp
new file mode 100644
index 0000000..dfd701e
--- /dev/null
+++ b/checks/Android.bp
@@ -0,0 +1,46 @@
+// Copyright (C) 2025 The Android Open Source Project
+//
+// 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.
+
+package {
+    default_team: "trendy_team_system_ui_please_use_a_more_specific_subteam_if_possible_",
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+java_library_host {
+    name: "Launcher3LintChecker",
+    srcs: ["src/**/*.kt"],
+    plugins: ["auto_service_plugin"],
+    libs: [
+        "auto_service_annotations",
+        "lint_api",
+    ],
+    kotlincflags: ["-Xjvm-default=all"],
+}
+
+java_test_host {
+    name: "Launcher3LintCheckerTest",
+    defaults: ["AndroidLintCheckerTestDefaults"],
+    srcs: ["tests/**/*.kt"],
+    data: [
+        ":androidx.annotation_annotation",
+        ":dagger2",
+        ":kotlinx-coroutines-core",
+    ],
+    device_common_data: [
+        ":framework",
+    ],
+    static_libs: [
+        "Launcher3LintChecker",
+    ],
+}