Move shutdown UI to sysui (when possible)

Test: click restart or power off in global actions
Change-Id: I0dc30a9772bbfb3cd3c3568f157e854fef87bf87
Fixes: 63576195
Fixes: 64125291
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
index 5e322da..866fdad 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
@@ -80,6 +80,8 @@
     void setGlobalActionsListener(GlobalActionsListener listener);
     void showGlobalActions();
 
+    boolean showShutdownUi(boolean isReboot, String requestString);
+
     public interface GlobalActionsListener {
         /**
          * Called when sysui starts and connects its status bar, or when the status bar binder