Fix QS expanding

The QS host triggers the expand by clicking on a view that will
expand QS, but the header itself doesn't handle expands anymore,
it is handled by the expand indicator.

Bug: 28060735
Change-Id: I4daaeb754d294d5e6647dedf36ab2161c6a0fa56

packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java

@@ -309,7 +309,7 @@ public class QuickStatusBarHeader extends BaseStatusBarHeader implements
 
     public void setupHost(final QSTileHost host) {
         mHost = host;
-        host.setHeaderView(this);
+        host.setHeaderView(mExpandIndicator);
         mHeaderQsPanel.setQSPanelAndHeader(mQsPanel, this);
         mHeaderQsPanel.setHost(host, null /* No customization in header */);
         setUserInfoController(host.getUserInfoController());