Add new LocaleManagerService and its shell commands

Ignore-AOSP-First: permission present in internal branch only

Test: tested manually via adb

Bug: 194094788
Bug: 194484378

Change-Id: I413a74fc1b15d164de7f2098e975e0b792685394

2 files changed, 53 insertions, 0 deletions

diff --git a/core/java/android/app/ILocaleManager.aidl b/core/java/android/app/ILocaleManager.aidl
new file mode 100644
index 000000000000..348cb2d30739
--- /dev/null
+++ b/core/java/android/app/ILocaleManager.aidl
@@ -0,0 +1,43 @@
+
+/*
+ * Copyright (C) 2021 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 android.app;
+
+import android.os.LocaleList;
+
+/**
+ * Internal interface used to control app-specific locales.
+ *
+ * <p>Use the {@link android.app.LocaleManager} class rather than going through
+ * this Binder interface directly. See {@link android.app.LocaleManager} for
+ * more complete documentation.
+ *
+ * @hide
+ */
+ interface ILocaleManager {
+
+     /**
+      * Sets a specified app’s app-specific UI locales.
+      */
+     void setApplicationLocales(String packageName, int userId, in LocaleList locales);
+
+     /**
+      * Returns the specified app's app-specific locales.
+      */
+     LocaleList getApplicationLocales(String packageName, int userId);
+
+ }
\ No newline at end of file
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 3ab070f2395c..20ee695d1986 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -3801,6 +3801,7 @@ public abstract class Context {
             //@hide: TIME_ZONE_DETECTOR_SERVICE,
             PERMISSION_SERVICE,
             LIGHTS_SERVICE,
+            LOCALE_SERVICE,
             //@hide: PEOPLE_SERVICE,
             //@hide: DEVICE_STATE_SERVICE,
             //@hide: SPEECH_RECOGNITION_SERVICE,
@@ -5784,6 +5785,15 @@ public abstract class Context {
     public static final String DISPLAY_HASH_SERVICE = "display_hash";
 
     /**
+     * Use with {@link #getSystemService(String)} to retrieve a
+     * {@link android.app.LocaleManager}.
+     *
+     * @see #getSystemService(String)
+     * @hide
+     */
+    public static final String LOCALE_SERVICE = "locale";
+
+    /**
      * Determine whether the given permission is allowed for a particular
      * process and user ID running in the system.
      *