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

ui/views/widget/native_widget_aura.h

 // 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.
 
 #ifndef UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_
 
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "ui/aura/client/activation_change_observer.h"
@@ skipping 10 matching lines @@
 class Window;
 }
 namespace gfx {
 class Font;
 }
 
 namespace views {
 
 class DropHelper;
 class NativeWidgetAuraWindowObserver;
+class NativeWidgetLayerReordererAura;
 class TooltipManagerAura;
 
 class VIEWS_EXPORT NativeWidgetAura
     : public internal::NativeWidgetPrivate,
       public internal::InputMethodDelegate,
       public aura::WindowDelegate,
       public aura::client::ActivationDelegate,
       public aura::client::ActivationChangeObserver,
       public aura::client::FocusChangeObserver,
       public aura::client::DragDropDelegate {
@@ skipping 10 matching lines @@
   virtual bool ShouldUseNativeFrame() const OVERRIDE;
   virtual void FrameTypeChanged() OVERRIDE;
   virtual Widget* GetWidget() OVERRIDE;
   virtual const Widget* GetWidget() const OVERRIDE;
   virtual gfx::NativeView GetNativeView() const OVERRIDE;
   virtual gfx::NativeWindow GetNativeWindow() const OVERRIDE;
   virtual Widget* GetTopLevelWidget() OVERRIDE;
   virtual const ui::Compositor* GetCompositor() const OVERRIDE;
   virtual ui::Compositor* GetCompositor() OVERRIDE;
   virtual ui::Layer* GetLayer() OVERRIDE;
+  virtual void ReorderLayersForAttachedNativeViews() OVERRIDE;
   virtual void ViewRemoved(View* view) OVERRIDE;
   virtual void SetNativeWindowProperty(const char* name, void* value) OVERRIDE;
   virtual void* GetNativeWindowProperty(const char* name) const OVERRIDE;
   virtual TooltipManager* GetTooltipManager() const OVERRIDE;
   virtual void SetCapture() OVERRIDE;
   virtual void ReleaseCapture() OVERRIDE;
   virtual bool HasCapture() const OVERRIDE;
   virtual InputMethod* CreateInputMethod() OVERRIDE;
   virtual internal::InputMethodDelegate* GetInputMethodDelegate() OVERRIDE;
   virtual void CenterWindow(const gfx::Size& size) OVERRIDE;
@@ skipping 127 matching lines @@
   // Are we in the destructor?
   bool destroying_;
 
   gfx::NativeCursor cursor_;
 
   // The saved window state for exiting full screen state.
   ui::WindowShowState saved_window_state_;
 
   scoped_ptr<TooltipManagerAura> tooltip_manager_;
 
+  // Reorders layers and windows based on the order of views with layers and
+  // views with attached windows in the widget's view hierarchy.
+  scoped_ptr<NativeWidgetLayerReordererAura> layer_reorderer_;
+
   scoped_ptr<NativeWidgetAuraWindowObserver> active_window_observer_;
 
   scoped_ptr<DropHelper> drop_helper_;
   int last_drop_operation_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetAura);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_AURA_H_