Promote startActivityAsUser to SystemApi

Currently, Context#startActivityAsUser(Intent, UserHandle) has
already been a System API. This CL furthur makes
startActivityAsUser with ActivityOptions a System API.
This is enssential to launch an Activity to the secondary display
by setting launched display ID in ActivityOptions.

This also align the behavior of startActivity. We made all versions
of startActivity public APIs.

Bug: 199829817
Test: presubit
CTS-Coverage-Bug: 222189824
Change-Id: Ia1db353d4b91a8952d4d21b970253e1ac03e8173
diff --git a/core/api/system-current.txt b/core/api/system-current.txt
index 83464f0..40e9254 100644
--- a/core/api/system-current.txt
+++ b/core/api/system-current.txt
@@ -468,7 +468,6 @@
     method public boolean convertToTranslucent(android.app.Activity.TranslucentConversionListener, android.app.ActivityOptions);
     method @Deprecated public boolean isBackgroundVisibleBehind();
     method @Deprecated public void onBackgroundVisibleBehindChanged(boolean);
-    method @RequiresPermission(anyOf={android.Manifest.permission.INTERACT_ACROSS_USERS, android.Manifest.permission.INTERACT_ACROSS_USERS_FULL}) public void startActivityAsUser(@NonNull android.content.Intent, @Nullable android.os.Bundle, @NonNull android.os.UserHandle);
     method @RequiresPermission(anyOf={android.Manifest.permission.INTERACT_ACROSS_USERS, android.Manifest.permission.INTERACT_ACROSS_USERS_FULL}) public void startActivityForResultAsUser(@NonNull android.content.Intent, int, @NonNull android.os.UserHandle);
     method @RequiresPermission(anyOf={android.Manifest.permission.INTERACT_ACROSS_USERS, android.Manifest.permission.INTERACT_ACROSS_USERS_FULL}) public void startActivityForResultAsUser(@NonNull android.content.Intent, int, @Nullable android.os.Bundle, @NonNull android.os.UserHandle);
     method @RequiresPermission(anyOf={android.Manifest.permission.INTERACT_ACROSS_USERS, android.Manifest.permission.INTERACT_ACROSS_USERS_FULL}) public void startActivityForResultAsUser(@NonNull android.content.Intent, @NonNull String, int, @Nullable android.os.Bundle, @NonNull android.os.UserHandle);
@@ -2931,6 +2930,7 @@
     method public void sendBroadcastMultiplePermissions(@NonNull android.content.Intent, @NonNull String[], @Nullable android.app.BroadcastOptions);
     method public abstract void sendOrderedBroadcast(@NonNull android.content.Intent, @Nullable String, @Nullable android.os.Bundle, @Nullable android.content.BroadcastReceiver, @Nullable android.os.Handler, int, @Nullable String, @Nullable android.os.Bundle);
     method @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS) public void startActivityAsUser(@NonNull @RequiresPermission android.content.Intent, @NonNull android.os.UserHandle);
+    method @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS) public void startActivityAsUser(@NonNull @RequiresPermission android.content.Intent, @Nullable android.os.Bundle, @NonNull android.os.UserHandle);
     field public static final String AMBIENT_CONTEXT_SERVICE = "ambient_context";
     field public static final String APP_HIBERNATION_SERVICE = "app_hibernation";
     field public static final String APP_INTEGRITY_SERVICE = "app_integrity";
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 2bda020..60efb4d 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -2011,9 +2011,9 @@
      * @hide
      */
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS)
-    @UnsupportedAppUsage
-    public void startActivityAsUser(@RequiresPermission Intent intent, @Nullable Bundle options,
-            UserHandle userId) {
+    @SystemApi
+    public void startActivityAsUser(@RequiresPermission @NonNull Intent intent,
+            @Nullable Bundle options, @NonNull UserHandle userId) {
         throw new RuntimeException("Not implemented. Must override in a subclass.");
     }