am 148222fd: Merge "remove disabling of Back/Dismiss button for 10" mode" into honeycomb-mr2

        mTimeZoneAdapter = ZonePicker.constructTimezoneAdapter(this, false,

            R.layout.date_time_setup_custom_list_item_2);

        // For the normal view, disable Back since changes stick immediately

        // and can't be canceled, and we already have a Next button. For xLarge,

        // though, we save up our changes and set them upon Next, so Back can

        // cancel. And also, in xlarge, we need the keyboard dismiss button

        // to be available.

        if (!mUsingXLargeLayout) {

            final View layoutRoot = findViewById(R.id.layout_root);

            layoutRoot.setSystemUiVisibility(View.STATUS_BAR_DISABLE_BACK);

        }

    }

    public void initUiForXl() {

        // Currently just comment out codes related to auto timezone.