Add APIs for interacting across users.

- Expose the existing Context.sendBroadcast() as
  Context.sendBroadcastAsUser().
- Add new android:singleUser attribute for services.
- Add new INTERACT_ACROSS_USERS_FULL permission for full
  system-level access to cross-user interface (allows
  sendBroadcastAsUser() to send to any receiver).
- Add new INTERACT_ACROSS_USERS_FULL permission for
  more restricted cross-user interaction: this is required
  for android:singleUser, and allows you to use
  sendBroadcastAsUser() but only to send to your own
  receivers.

Change-Id: I0de88f6718e9505f4de72e3f45d29c0f503b76e9

1 files changed, 5 insertions, 3 deletions

diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 8597993..af8b213 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -988,12 +988,14 @@ public abstract class Context {
     public abstract void sendBroadcast(Intent intent);
 
     /**
-     * Same as #sendBroadcast(Intent intent), but for a specific user. Used by the system only.
+     * Same as #sendBroadcast(Intent intent), but for a specific user.  This broadcast
+     * can only be sent to receivers that are part of the calling application.  It
+     * requires holding the {@link android.Manifest.permission#INTERACT_ACROSS_USERS}
+     * permission.
      * @param intent the intent to broadcast
      * @param userId user to send the intent to
-     * @hide
      */
-    public void sendBroadcast(Intent intent, int userId) {
+    public void sendBroadcastToUser(Intent intent, int userId) {
         throw new RuntimeException("Not implemented. Must override in a subclass.");
     }