Update window_parenting_utils to use aura::window

ash/common/wm/panels/panel_window_resizer.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/common/wm/panels/panel_window_resizer.h"
 
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/wm/panels/panel_layout_manager.h"
 #include "ash/common/wm/window_parenting_utils.h"
 #include "ash/common/wm/window_state.h"
@@ skipping 143 matching lines @@
   // attaching it so that it does not get repositioned.
   if (panel_container_)
     PanelLayoutManager::Get(panel_container_)->StartDragging(GetTarget());
   if (!was_attached_) {
     // Attach the panel while dragging, placing it in front of other panels.
     WmWindow* target = GetTarget();
     target->aura_window()->SetProperty(kPanelAttachedKey, true);
     // We use root window coordinates to ensure that during the drag the panel
     // is reparented to a container in the root window that has that window.
     WmWindow* target_root = target->GetRootWindow();
-    WmWindow* old_parent = target->GetParent();
+    aura::Window* old_parent = target->aura_window()->parent();
     target->SetParentUsingContext(target_root,
                                   target_root->GetBoundsInScreen());
-    wm::ReparentTransientChildrenOfChild(target, old_parent,
-                                         target->GetParent());
+    wm::ReparentTransientChildrenOfChild(target->aura_window(), old_parent,
+                                         target->aura_window()->parent());
   }
 }
 
 void PanelWindowResizer::FinishDragging() {
   if (!did_move_or_resize_)
     return;
   if (GetTarget()->aura_window()->GetProperty(kPanelAttachedKey) !=
       details().should_attach_to_shelf) {
     GetTarget()->aura_window()->SetProperty(kPanelAttachedKey,
                                             details().should_attach_to_shelf);
     // We use last known location to ensure that after the drag the panel
     // is reparented to a container in the root window that has that location.
     WmWindow* target = GetTarget();
     WmWindow* target_root = target->GetRootWindow();
-    WmWindow* old_parent = target->GetParent();
+    aura::Window* old_parent = target->aura_window()->parent();
     target->SetParentUsingContext(target_root,
-                                  gfx::Rect(last_location_, gfx::Size()));
-    wm::ReparentTransientChildrenOfChild(target, old_parent,
-                                         target->GetParent());
+                                  target_root->GetBoundsInScreen());
+    wm::ReparentTransientChildrenOfChild(target->aura_window(), old_parent,
+                                         target->aura_window()->parent());
+    ;

[sky, 2017/03/09 23:31:00]

Not needed.

[yiyix, 2017/03/10 00:55:57]

Done.

   }
 
   // If we started the drag in one root window and moved into another root
   // but then canceled the drag we may need to inform the original layout
   // manager that the drag is finished.
   if (initial_panel_container_ != panel_container_)
     PanelLayoutManager::Get(initial_panel_container_)->FinishDragging();
   if (panel_container_)
     PanelLayoutManager::Get(panel_container_)->FinishDragging();
 }
 
 void PanelWindowResizer::UpdateLauncherPosition() {
   if (panel_container_) {
     PanelLayoutManager::Get(panel_container_)
         ->shelf()
         ->UpdateIconPositionForPanel(GetTarget());
   }
 }
 
 }  // namespace ash