Merge "Add build flag for container builds"

    public static final boolean IS_ENG =

            "eng".equals(getString("ro.build.type"));

    /**

     * Whether this build is running inside a container.

     *

     * We should try to avoid checking this flag if possible to minimize

     * unnecessarily diverging from non-container Android behavior.

     * Checking this flag is acceptable when low-level resources being

     * different, e.g. the availability of certain capabilities, access to

     * system resources being restricted, and the fact that the host OS might

     * handle some features for us.

     * For higher-level behavior differences, other checks should be preferred.

     * @hide

     */

    public static final boolean IS_CONTAINER =

            SystemProperties.getBoolean("ro.boot.container", false);

    /**

     * Specifies whether the permissions needed by a legacy app should be

     * reviewed before any of its components can run. A legacy app is one