Update alignment for gear / snooze icons to shift when expanded

How do the icons get placed?
- Ideally they are centered in the “normal” notification height
- If the notification is larger than that, they remain in the same place
- If the notification is smaller than that they are centered in the
  remaining space
- If the height changes while showing, they shift

Test: manual - have min notification, show gear / snooze, expand it
      note that the gear / snooze icons shift when expanded. Also
      tested on variety of sized notifications (big picture, custom
      view + groups)
Fixes: 37922756

Change-Id: I6a2d8cd9e76e5a816adf79d052c4e15cf855886b

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

@@ -1973,6 +1973,9 @@ public class ExpandableNotificationRow extends ActivatableNotificationView
         if (mGuts != null) {
             mGuts.setActualHeight(height);
         }
+        if (mMenuRow.getMenuView() != null) {
+            mMenuRow.onHeightUpdate();
+        }
     }
 
     @Override

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

@@ -420,7 +420,7 @@ public class NotificationMenuRow implements NotificationMenuRowPlugin, View.OnCl
         if (mParent == null || mMenuItems.size() == 0 || mMenuContainer == null) {
             return;
         }
-        int parentHeight = mParent.getCollapsedHeight();
+        int parentHeight = mParent.getActualHeight();
         float translationY;
         if (parentHeight < mVertSpaceForIcons) {
             translationY = (parentHeight / 2) - (mHorizSpaceForIcon / 2);