Update window_parenting_utils to use aura::window

ash/common/wm/dock/docked_window_resizer.cc

 // Copyright 2013 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/dock/docked_window_resizer.h"
 
 #include "ash/common/wm/dock/docked_window_layout_manager.h"
 #include "ash/common/wm/window_parenting_utils.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_event.h"
@@ skipping 170 matching lines @@
   // Other windows for which the DockedWindowResizer is instantiated include
   // panels and windows that are already docked. Those do not need reparenting.
   if (GetTarget()->GetType() != ui::wm::WINDOW_TYPE_PANEL &&
       GetTarget()->GetParent()->GetShellWindowId() ==
           kShellWindowId_DefaultContainer) {
     // Reparent the window into the docked windows container in order to get it
     // on top of other docked windows.
     WmWindow* docked_container =
         GetTarget()->GetRootWindow()->GetChildByShellWindowId(
             kShellWindowId_DockedContainer);
-    wm::ReparentChildWithTransientChildren(
-        GetTarget(), GetTarget()->GetParent(), docked_container);
+    wm::ReparentChildWithTransientChildren(GetTarget()->aura_window(),
+                                           GetTarget()->aura_window()->parent(),
+                                           docked_container->aura_window());
     if (!resizer)
       return;
   }
   if (is_docked_)
     dock_layout_->DockDraggedWindow(GetTarget());
 }
 
 void DockedWindowResizer::FinishedDragging(
     aura::client::WindowMoveResult move_result) {
   if (!did_move_or_resize_)
@@ skipping 56 matching lines @@
     bool is_attached_panel) {
   WmWindow* window = GetTarget();
 
   // Check if the window needs to be docked or returned to workspace.
   DockedAction action = DOCKED_ACTION_NONE;
   WmWindow* dock_container = window->GetRootWindow()->GetChildByShellWindowId(
       kShellWindowId_DockedContainer);
   if ((is_resized || !is_attached_panel) &&
       is_docked_ != (window->GetParent() == dock_container)) {
     if (is_docked_) {
-      wm::ReparentChildWithTransientChildren(window, window->GetParent(),
-                                             dock_container);
+      wm::ReparentChildWithTransientChildren(window->aura_window(),
+                                             window->GetParent()->aura_window(),

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

window->parent()->aura_window()?

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

so sorry, i missed this one. 

+                                             dock_container->aura_window());
       action = DOCKED_ACTION_DOCK;
     } else if (window->GetParent()->GetShellWindowId() ==
                kShellWindowId_DockedContainer) {
       // Reparent the window back to workspace.
       // We need to be careful to give ParentWindowWithContext a location in
       // the right root window (matching the logic in DragWindowResizer) based
       // on which root window a mouse pointer is in. We want to undock into the
       // right screen near the edge of a multiscreen setup (based on where the
       // mouse is).
       gfx::Rect near_last_location(last_location_, gfx::Size());
       // Reparenting will cause Relayout and possible dock shrinking.
-      WmWindow* previous_parent = window->GetParent();
+      aura::Window* previous_parent = window->aura_window()->parent();
       window->SetParentUsingContext(window, near_last_location);
-      if (window->GetParent() != previous_parent) {
-        wm::ReparentTransientChildrenOfChild(window, previous_parent,
-                                             window->GetParent());
+      if (window->aura_window()->parent() != previous_parent) {
+        wm::ReparentTransientChildrenOfChild(window->aura_window(),
+                                             previous_parent,
+                                             window->aura_window()->parent());
       }
       action = was_docked_ ? DOCKED_ACTION_UNDOCK : DOCKED_ACTION_NONE;
     }
   } else {
     // |action| is recorded in UMA and used to maintain |window_state_|.
     if (is_resized && is_docked_ && was_docked_)
       action = DOCKED_ACTION_RESIZE;
     else if (is_docked_ && was_docked_)
       action = DOCKED_ACTION_REORDER;
     else if (is_docked_ && !was_docked_)
@@ skipping 18 matching lines @@
   } else if (window->GetWindowState()->IsDocked() &&
              action == DOCKED_ACTION_UNDOCK) {
     const wm::WMEvent event(wm::WM_EVENT_NORMAL);
     window_state_->OnWMEvent(&event);
   }
 
   return action;
 }
 
 }  // namespace ash