mash: Convert WebNotificationTray to wm common types

ash/system/web_notification/ash_popup_alignment_delegate.cc

 // Copyright 2014 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/web_notification/ash_popup_alignment_delegate.h"
 
 #include "ash/common/shelf/shelf_constants.h"
 #include "ash/common/shelf/shelf_types.h"
 #include "ash/common/shelf/wm_shelf.h"
+#include "ash/common/shell_window_ids.h"
+#include "ash/common/wm_root_window_controller.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "base/i18n/rtl.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/message_center/message_center_style.h"
 #include "ui/message_center/views/message_popup_collection.h"
 
 namespace ash {
@@ skipping 77 matching lines @@
 
 bool AshPopupAlignmentDelegate::IsFromLeft() const {
   return GetAlignment() == SHELF_ALIGNMENT_LEFT;
 }
 
 void AshPopupAlignmentDelegate::RecomputeAlignment(
     const display::Display& display) {
   // Nothing needs to be done.
 }
 
+void AshPopupAlignmentDelegate::ConfigureWidgetInitParamsForContainer(
+    views::Widget* widget,
+    views::Widget::InitParams* init_params) {
+  // On ash, popups go in the status container.
+  shelf_->GetWindow()
+      ->GetRootWindowController()
+      ->ConfigureWidgetInitParamsForContainer(
+          widget, kShellWindowId_StatusContainer, init_params);
+}
+
 ShelfAlignment AshPopupAlignmentDelegate::GetAlignment() const {
   return shelf_->GetAlignment();
 }
 
 display::Display AshPopupAlignmentDelegate::GetCurrentDisplay() const {
   return shelf_->GetWindow()->GetDisplayNearestWindow();
 }
 
 void AshPopupAlignmentDelegate::UpdateWorkArea() {
   work_area_ = shelf_->GetUserWorkAreaBounds();
@@ skipping 30 matching lines @@
     const display::Display& old_display) {}
 
 void AshPopupAlignmentDelegate::OnDisplayMetricsChanged(
     const display::Display& display,
     uint32_t metrics) {
   if (GetCurrentDisplay().id() == display.id())
     UpdateWorkArea();
 }
 
 }  // namespace ash