chromeos: Remove TrayBubbleView::Delegate::OnBeforeBubbleWidgetInit

ash/system/tray/tray_background_view.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_background_view.h"
 
 #include <algorithm>
 
 #include "ash/ash_constants.h"
+#include "ash/public/cpp/shell_window_ids.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_constants.h"
 #include "ash/shell.h"
 #include "ash/system/status_area_widget_delegate.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_container.h"
 #include "ash/system/tray/tray_event_filter.h"
 #include "base/memory/ptr_util.h"
 #include "ui/accessibility/ax_node_data.h"
@@ skipping 326 matching lines @@
   gfx::Insets tray_bg_insets = GetInsets();
   if (GetAnchorAlignment() == TrayBubbleView::ANCHOR_ALIGNMENT_BOTTOM) {
     return gfx::Insets(-tray_bg_insets.top(), anchor_insets.left(),
                        -tray_bg_insets.bottom(), anchor_insets.right());
   } else {
     return gfx::Insets(anchor_insets.top(), -tray_bg_insets.left(),
                        anchor_insets.bottom(), -tray_bg_insets.right());
   }
 }
 
+aura::Window* TrayBackgroundView::GetBubbleWindowContainer() const {
+  return Shell::GetContainer(
+      tray_container()->GetWidget()->GetNativeWindow()->GetRootWindow(),
+      kShellWindowId_SettingBubbleContainer);
+}
+
 std::unique_ptr<views::InkDropMask> TrayBackgroundView::CreateInkDropMask()
     const {
   return base::MakeUnique<views::RoundRectInkDropMask>(
       size(), GetBackgroundInsets(), kTrayRoundedBorderRadius);
 }
 
 bool TrayBackgroundView::ShouldEnterPushedState(const ui::Event& event) {
   if (is_active_)
     return false;
 
@@ skipping 65 matching lines @@
 }
 
 gfx::Rect TrayBackgroundView::GetBackgroundBounds() const {
   gfx::Insets insets = GetBackgroundInsets();
   gfx::Rect bounds = GetLocalBounds();
   bounds.Inset(insets);
   return bounds;
 }
 
 }  // namespace ash