Do not update arrow when use-alternate-shelf

ash/system/tray/system_tray.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/system/tray/system_tray.h"
 
 #include "ash/ash_switches.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell/panel_window.h"
@@ skipping 521 matching lines @@
 
 void SystemTray::AnchorUpdated() {
   if (notification_bubble_) {
     notification_bubble_->bubble_view()->UpdateBubble();
     // Ensure that the notification buble is above the launcher/status area.
     notification_bubble_->bubble_view()->GetWidget()->StackAtTop();
     UpdateBubbleViewArrow(notification_bubble_->bubble_view());
   }
   if (system_bubble_) {
     system_bubble_->bubble_view()->UpdateBubble();
-    if (!ash::switches::UseAlternateShelfLayout())
-      UpdateBubbleViewArrow(system_bubble_->bubble_view());
+    UpdateBubbleViewArrow(system_bubble_->bubble_view());
   }
 }
 
 base::string16 SystemTray::GetAccessibleNameForTray() {
   return l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME);
 }
 
 void SystemTray::HideBubbleWithView(const TrayBubbleView* bubble_view) {
   if (system_bubble_.get() && bubble_view == system_bubble_->bubble_view()) {
     DestroySystemBubble();
@@ skipping 60 matching lines @@
         ConvertPointToWidget(this, &point);
         arrow_offset = point.x();
       }
     }
     ShowDefaultViewWithOffset(BUBBLE_CREATE_NEW, arrow_offset);
   }
   return true;
 }
 
 }  // namespace ash