Implement NativeWidgetMac::ReorderNativeViews

ui/views/widget/native_widget_mac.mm

 // 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 "ui/views/widget/native_widget_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include <utility>
 
@@ skipping 175 matching lines @@
 const ui::Compositor* NativeWidgetMac::GetCompositor() const {
   return bridge_ && bridge_->layer() ? bridge_->layer()->GetCompositor()
                                      : nullptr;
 }
 
 const ui::Layer* NativeWidgetMac::GetLayer() const {
   return bridge_ ? bridge_->layer() : nullptr;
 }
 
 void NativeWidgetMac::ReorderNativeViews() {
-  if (bridge_)
+  if (bridge_) {
     bridge_->SetRootView(GetWidget()->GetRootView());
+    bridge_->ReorderChildViews();
+  }
 }
 
 void NativeWidgetMac::ViewRemoved(View* view) {
   // TODO(tapted): Something for drag and drop might be needed here in future.
   // See http://crbug.com/464581. A NOTIMPLEMENTED() here makes a lot of spam,
   // so only emit it when a drag and drop could be likely.
   if (IsMouseButtonDown())
     NOTIMPLEMENTED();
 }
 
@@ skipping 525 matching lines @@
   [[ViewsNSWindowCloseAnimator alloc] initWithWindow:window];
 }
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   [window_ close];
   [animation_ setDelegate:nil];
   [self release];
 }
 
 @end