Remove close_on_deactivate=false for tray bubbles (2nd)

ash/system/web_notification/web_notification_tray.cc

Index: ash/system/web_notification/web_notification_tray.cc
diff --git a/ash/system/web_notification/web_notification_tray.cc b/ash/system/web_notification/web_notification_tray.cc
index cfc1e1c26c61a8ab780f72f561076bece7be1200..2e05fa48c07b1bc192b0602aad20079c5281ee01 100644
--- a/ash/system/web_notification/web_notification_tray.cc
+++ b/ash/system/web_notification/web_notification_tray.cc
@@ -61,7 +61,6 @@ class WebNotificationBubbleWrapper {
         tray->GetAnchorAlignment();
     views::TrayBubbleView::InitParams init_params =
         bubble->GetInitParams(anchor_alignment);
-    init_params.close_on_deactivate = false;
     views::View* anchor = tray->tray_container();
     if (anchor_alignment == views::TrayBubbleView::ANCHOR_ALIGNMENT_BOTTOM) {
       gfx::Point bounds(anchor->width() / 2, 0);