Merge "Add comment for thrown exception in waitForDeclaredService"

     * If the service is not running, servicemanager will attempt to start it, and this function

     * will wait for it to be ready.

     *

     * @return {@code null} if the service is not declared in the manifest, or if there are

     * permission problems, or if there are fatal errors.

     * @throws SecurityException if the process does not have the permissions to check

     * isDeclared() for the service.

     * @return {@code null} if the service is not declared in the manifest, or if there

     * are fatal errors.

     * @hide

     */

    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)