Don't even try adjusting when dock is minimized

Bug: 28652219
Change-Id: I61fa515ec945e1da6b9e7a53766abea2fb1e606e
diff --git a/services/core/java/com/android/server/wm/DockedStackDividerController.java b/services/core/java/com/android/server/wm/DockedStackDividerController.java
index ca68d55..6142511 100644
--- a/services/core/java/com/android/server/wm/DockedStackDividerController.java
+++ b/services/core/java/com/android/server/wm/DockedStackDividerController.java
@@ -377,6 +377,10 @@
         checkMinimizeChanged(true /* animate */);
     }
 
+    boolean isMinimizedDock() {
+        return mMinimizedDock;
+    }
+
     private void checkMinimizeChanged(boolean animate) {
         if (mDisplayContent.getDockedStackVisibleForUserLocked() == null) {
             return;