Aura: Have ui::Layer implement WebKit::WebExternalTextureLayerClient

content/browser/renderer_host/image_transport_client.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 CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_CLIENT_H_
-#define CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_CLIENT_H_
-
-#include "base/basictypes.h"
-#include "ui/compositor/compositor.h"
-#include "ui/surface/transport_dib.h"
-
-namespace gfx {
-class Size;
-}
-class ImageTransportFactory;
-
-// This is a client for ImageTransportSurface, that handles the
-// platform-specific task of binding the transport surface to a GL texture.
-// The GL texture is allocated in the ImageTransportFactory context, and the
-// data is only valid after the first Update().
-class ImageTransportClient : public ui::Texture {
- public:
-  // Initializes the client with the surface id.
-  virtual bool Initialize(uint64* surface_handle) = 0;
-
-  // Updates the surface data into the texture.
-  virtual void Update() = 0;
-
-  // Returns the shared memory handle used to transfer software data if needed.
-  // Can be a NULL handle.
-  virtual TransportDIB::Handle Handle() const = 0;
-
-  // Creates a platform-specific client.
-  static ImageTransportClient* Create(ImageTransportFactory* factory,
-                                      const gfx::Size& size);
-
- protected:
-  ImageTransportClient(bool flipped, const gfx::Size& size);
-  virtual ~ImageTransportClient() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ImageTransportClient);
-};
-
-#endif  // CONTENT_BROWSER_RENDERER_HOST_IMAGE_TRANSPORT_CLIENT_H_
-