Reorder the NativeViews attached to a view via kViewHostKey according to the position of the view

ui/views/controls/native/native_view_host_aura.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 "ui/views/controls/native/native_view_host_aura.h"
 
 #include "base/logging.h"
 #include "ui/aura/focus_manager.h"
 #include "ui/aura/window.h"
 #include "ui/views/controls/native/native_view_host.h"
+#include "ui/views/view_constants_aura.h"
 #include "ui/views/widget/widget.h"
 
 namespace views {
 
 NativeViewHostAura::NativeViewHostAura(NativeViewHost* host)
     : host_(host),
       installed_clip_(false) {
 }
 
 NativeViewHostAura::~NativeViewHostAura() {
-  if (host_->native_view())
+  if (host_->native_view()) {
+    host_->native_view()->ClearProperty(views::kHostViewKey);
     host_->native_view()->RemoveObserver(this);
+  }
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeViewHostAura, NativeViewHostWrapper implementation:
 void NativeViewHostAura::NativeViewWillAttach() {
   host_->native_view()->AddObserver(this);
+  host_->native_view()->SetProperty(views::kHostViewKey,
+      static_cast<View*>(host_));
 }
 
 void NativeViewHostAura::NativeViewDetaching(bool destroyed) {
   if (!destroyed) {
+    host_->native_view()->ClearProperty(views::kHostViewKey);
     host_->native_view()->RemoveObserver(this);
     host_->native_view()->Hide();
     if (host_->native_view()->parent())
       Widget::ReparentNativeView(host_->native_view(), NULL);
   }
 }
 
 void NativeViewHostAura::AddedToWidget() {
   if (!host_->native_view())
     return;
@@ skipping 54 matching lines @@
   host_->NativeViewDestroyed();
 }
 
 // static
 NativeViewHostWrapper* NativeViewHostWrapper::CreateWrapper(
     NativeViewHost* host) {
   return new NativeViewHostAura(host);
 }
 
 }  // namespace views