Consider icon scale when calculating icon offset in shelf

Fixes the the jumping of the last icon in the notification shade when
you start to collapse slowly.

Test: visual
Change-Id: Ia4d4189104ce1b4e7b45276f4a2fa26f8186390e
Fixes: 80270979

packages/SystemUI/src/com/android/systemui/statusbar/NotificationShelf.java

@@ -482,8 +482,8 @@ public class NotificationShelf extends ActivatableNotificationView implements
         iconTransformDistance = Math.min(iconTransformDistance, fullHeight);
         if (isLastChild) {
             fullHeight = Math.min(fullHeight, row.getMinHeight() - getIntrinsicHeight());
-            iconTransformDistance = Math.min(iconTransformDistance, row.getMinHeight()
-                    - getIntrinsicHeight());
+            iconTransformDistance = Math.min(iconTransformDistance,
+                    row.getMinHeight() - getIntrinsicHeight() * icon.getIconScale());
         }
         float viewEnd = viewStart + fullHeight;
         if (expandingAnimated && mAmbientState.getScrollY() == 0