Refresh the status bar clock format on user switch.

Bug: 7490931
Change-Id: Ifad46ec7cee40aa5a622ee2621fc425835366e32

Author: dsandler

packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java

@@ -45,8 +45,7 @@
 import com.android.internal.R;
 
 /**
- * This widget display an analogic clock with two hands for hours and
- * minutes.
+ * Digital clock for the status bar.
  */
 public class Clock extends TextView {
     private boolean mAttached;
@@ -84,6 +83,7 @@ protected void onAttachedToWindow() {
             filter.addAction(Intent.ACTION_TIME_CHANGED);
             filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
             filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
+            filter.addAction(Intent.ACTION_USER_SWITCHED);
 
             getContext().registerReceiver(mIntentReceiver, filter, null, getHandler());
         }