Do not activate system tray bubble by default

ash/common/system/date/tray_date.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/common/system/date/tray_date.h"
 
 #include "ash/common/shelf/wm_shelf_util.h"
 #include "ash/common/system/date/date_default_view.h"
 #include "ash/common/system/date/date_view.h"
 #include "ash/common/system/tray/system_tray.h"
@@ skipping 46 matching lines @@
       system_tray()->shelf_alignment() == SHELF_ALIGNMENT_BOTTOM
           ? HORIZONTAL_CLOCK
           : VERTICAL_CLOCK;
   time_tray_ = new tray::TimeView(clock_layout);
   views::View* view = new TrayItemView(this);
   view->AddChildView(time_tray_);
   return view;
 }
 
 views::View* TrayDate::CreateDefaultView(LoginStatus status) {
-  default_view_ = new DateDefaultView(status);
+  default_view_ = new DateDefaultView(this, status);
 
 #if defined(OS_CHROMEOS)
   // Save the login status we created the view with.
   login_status_ = status;
 
   OnSystemClockCanSetTimeChanged(system_clock_observer_->can_set_time());
 #endif
   return default_view_;
 }
 
@@ skipping 43 matching lines @@
         can_set_time ? TrayDate::SET_SYSTEM_TIME : TrayDate::NONE);
   }
 }
 
 void TrayDate::Refresh() {
   if (time_tray_)
     time_tray_->UpdateText();
 }
 
 }  // namespace ash