Animation changed to fade out on Launcher related bubbles.

ash/system/tray/tray_bubble_wrapper.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/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/widget/widget.h"
 
 using message_center::TrayBubbleView;
 
 namespace ash {
 namespace internal {
 
 TrayBubbleWrapper::TrayBubbleWrapper(TrayBackgroundView* tray,
                                      TrayBubbleView* bubble_view)
     : tray_(tray),
       bubble_view_(bubble_view) {
   bubble_widget_ = views::BubbleDelegateView::CreateBubble(bubble_view_);
   bubble_widget_->AddObserver(this);
   bubble_widget_->GetNativeView()->
       SetProperty(internal::kStayInSameRootWindowKey, true);
 
+  tray_->InitializeBubbleAnimations(bubble_widget_);

[Harry McCleave, 2012/10/30 01:48:12]

Am I missing something of importance here as to why this was called after show?

[xiyuan, 2012/10/30 16:49:00]

Can you be more specific? You mean it is called after SystemTray::ShowItem
returns?

   bubble_view_->InitializeAndShowBubble();
-  tray_->InitializeBubbleAnimations(bubble_widget_);
 
   tray_event_filter_.reset(new TrayEventFilter(this));
 }
 
 TrayBubbleWrapper::~TrayBubbleWrapper() {
   tray_event_filter_.reset();
   if (bubble_widget_) {
     bubble_widget_->RemoveObserver(this);
     bubble_widget_->Close();
   }
 }
 
 void TrayBubbleWrapper::OnWidgetClosing(views::Widget* widget) {
   CHECK_EQ(bubble_widget_, widget);
   bubble_widget_ = NULL;
   tray_->HideBubbleWithView(bubble_view_);  // May destroy |bubble_view_|
 }
 
 }  // namespace internal
 }  // namespace ash