Clean up and cover more QS metrics

Change-Id: I4ab5e54398024c8b16ca8223f0639aadcdef4377
Fixes: 34801532
Test: runtest systemui
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSHost.java b/packages/SystemUI/src/com/android/systemui/qs/QSHost.java
index 29d547c..8596b57 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSHost.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSHost.java
@@ -32,6 +32,8 @@
     TileServices getTileServices();
     void removeTile(String tileSpec);
 
+    int indexOf(String tileSpec);
+
     interface Callback {
         void onTilesChanged();
     }