Implement real QS user switcher

Replaces the stop-gap user switcher with the real deal.
Dimensions may need some further adjustments.

Bug: 15545213
Change-Id: I4399635c03553dac935049d5b8297fe5f5c1dc9a
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
index 5f09cbd..4901f40 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
@@ -108,6 +108,9 @@
         mHost = host;
     }
 
+    public QSTileHost getHost() {
+        return mHost;
+    }
 
     public void updateResources() {
         final Resources res = mContext.getResources();