Convert TrayBubbleView to wm common types

ash/system/tray/system_tray_bubble.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_bubble.h"
 
 #include "ash/common/system/tray/system_tray_delegate.h"
 #include "ash/common/system/tray/system_tray_item.h"
 #include "ash/common/system/tray/tray_constants.h"
 #include "ash/common/system/tray/tray_popup_item_container.h"
 #include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/tray_bubble_wrapper.h"
 #include "base/threading/thread_task_runner_handle.h"
-#include "ui/aura/window.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_animation_observer.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/canvas.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 
 using views::TrayBubbleView;
 
@@ skipping 149 matching lines @@
         settings.SetTweenType(gfx::Tween::EASE_OUT);
         new_layer->SetTransform(gfx::Transform());
       }
     }
   }
 }
 
 void SystemTrayBubble::InitView(views::View* anchor,
                                 LoginStatus login_status,
                                 TrayBubbleView::InitParams* init_params) {
-  DCHECK(bubble_view_ == NULL);
+  DCHECK(anchor);
+  DCHECK(!bubble_view_);
 
   if (bubble_type_ == BUBBLE_TYPE_DETAILED &&
       init_params->max_height < kDetailedBubbleMaxHeight) {
     init_params->max_height = kDetailedBubbleMaxHeight;
   } else if (bubble_type_ == BUBBLE_TYPE_NOTIFICATION) {
     init_params->close_on_deactivate = false;
   }
-  bubble_view_ = TrayBubbleView::Create(
-      tray_->GetBubbleWindowContainer(), anchor, tray_, init_params);
+  // The TrayBubbleView will use |anchor| and |tray_| to determine the parent
+  // container for the bubble.
+  bubble_view_ = TrayBubbleView::Create(anchor, tray_, init_params);
   bubble_view_->set_adjust_if_offscreen(false);
   CreateItemViews(login_status);
 
   if (bubble_view_->CanActivate()) {
     bubble_view_->NotifyAccessibilityEvent(
         ui::AX_EVENT_ALERT, true);
   }
 }
 
 void SystemTrayBubble::FocusDefaultIfNeeded() {
@@ skipping 110 matching lines @@
     // 2 items, which are the bottom header row and the one just above it.
     bubble_view_->AddChildView(new TrayPopupItemContainer(
         item_views[i], is_default_bubble,
         is_default_bubble && (i < item_views.size() - 2)));
   }
   if (focus_view)
     focus_view->RequestFocus();
 }
 
 }  // namespace ash