layer_owner_delegate.h revision effb81e5f8246d0db0270817048dc992db66e9fb 
1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef UI_COMPOSITOR_LAYER_OWNER_DELEGATE_H_
6#define UI_COMPOSITOR_LAYER_OWNER_DELEGATE_H_
7
8#include "ui/compositor/compositor_export.h"
9
10namespace ui {
11class Layer;
12
13// Called from RecreateLayer() after the new layer was created. old_layer is
14// the layer that will be returned to the caller of RecreateLayer, new_layer
15// will be the layer now used. Used when the layer has external content
16// (SetExternalTexture / SetTextureMailbox / SetDelegatedFrame was called).
17class COMPOSITOR_EXPORT LayerOwnerDelegate {
18 public:
19  virtual void OnLayerRecreated(Layer* old_layer, Layer* new_layer) = 0;
20
21 protected:
22  virtual ~LayerOwnerDelegate() {}
23};
24
25}  // namespace ui
26
27#endif  // UI_COMPOSITOR_LAYER_OWNER_DELEGATE_H_
28