Send notification to users upon receiving sms messages

ash/common/system/status_area_widget.cc

Index: ash/common/system/status_area_widget.cc
diff --git a/ash/common/system/status_area_widget.cc b/ash/common/system/status_area_widget.cc
index 1fe17f64284d53add21b975cd45565e34177b97b..302a526afc347a9937b70d3daf292e5da02a32da 100644
--- a/ash/common/system/status_area_widget.cc
+++ b/ash/common/system/status_area_widget.cc
@@ -146,9 +146,7 @@ bool StatusAreaWidget::ShouldShowShelf() const {
   if (!wm_shelf_->IsVisible())
     return false;
 
-  // If the shelf is currently visible, don't hide the shelf if the mouse
-  // is in any of the notification bubbles.
-  return system_tray_ && system_tray_->IsMouseInNotificationBubble();
+  return false;
 }
 
 bool StatusAreaWidget::IsMessageBubbleShown() const {