Move ash/system/web_notification message_center to ui/

ash/system/tray/tray_bubble_wrapper.cc

Index: ash/system/tray/tray_bubble_wrapper.cc
diff --git a/ash/system/tray/tray_bubble_wrapper.cc b/ash/system/tray/tray_bubble_wrapper.cc
index 5e92a846f10fa0e9d8be6f0c8ab44c6413b3f233..8b32282d65b296360b0f9d2faec6cf61a4dcfc23 100644
--- a/ash/system/tray/tray_bubble_wrapper.cc
+++ b/ash/system/tray/tray_bubble_wrapper.cc
@@ -5,18 +5,16 @@
 #include "ash/system/tray/tray_bubble_wrapper.h"
 
 #include "ash/system/tray/tray_background_view.h"
-#include "ash/system/tray/tray_bubble_view.h"
 #include "ash/system/tray/tray_event_filter.h"
 #include "ash/wm/window_properties.h"
+#include "ui/views/bubble/tray_bubble_view.h"
 #include "ui/views/widget/widget.h"
 
-using message_center::TrayBubbleView;
-
 namespace ash {
 namespace internal {
 
 TrayBubbleWrapper::TrayBubbleWrapper(TrayBackgroundView* tray,
-                                     TrayBubbleView* bubble_view)
+                                     views::TrayBubbleView* bubble_view)
     : tray_(tray),
       bubble_view_(bubble_view) {
   bubble_widget_ = views::BubbleDelegateView::CreateBubble(bubble_view_);
@@ -26,6 +24,7 @@ TrayBubbleWrapper::TrayBubbleWrapper(TrayBackgroundView* tray,
 
   bubble_view_->InitializeAndShowBubble();
   tray_->InitializeBubbleAnimations(bubble_widget_);
+  tray_->UpdateBubbleViewArrow(bubble_view_);
 
   tray_event_filter_.reset(new TrayEventFilter(this));
 }