am 3c144c3e: Merge "Add an updateAppPermission() API call to the AccountManagerService AIDL and have the GrantCredentialsPermissionActivity call that instead of a static so that it can be made to run in a different process than the AccountManagerService. Protect this 

* commit '3c144c3e69405000f5c7542f20890437a4fb4987':
  Add an updateAppPermission() API call to the AccountManagerService AIDL and have the GrantCredentialsPermissionActivity call that instead of a static so that it can be made to run in a different process than the AccountManagerService. Protect this call by checking that the caller has the same UID as the system process.