Ozone integration.

ui/ozone/platform/drm/gpu/gbm_surfaceless.h

+// 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.
+
+#ifndef UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACELESS_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACELESS_H_
+
+#include "ui/ozone/public/surface_ozone_egl.h"
+
+namespace gfx {
+class Size;
+}  // namespace gfx
+
+namespace ui {
+
+class DrmDeviceManager;
+class DrmWindow;
+
+// In surfaceless mode drawing and displaying happens directly through
+// NativePixmap buffers. CC would call into SurfaceFactoryOzone to allocate the
+// buffers and then call ScheduleOverlayPlane(..) to schedule the buffer for
+// presentation.
+class GbmSurfaceless : public SurfaceOzoneEGL {
+ public:
+  GbmSurfaceless(DrmWindow* window_delegate,
+                 DrmDeviceManager* drm_device_manager);
+  ~GbmSurfaceless() override;
+
+  // SurfaceOzoneEGL:
+  intptr_t GetNativeWindow() override;
+  bool ResizeNativeWindow(const gfx::Size& viewport_size) override;
+  bool OnSwapBuffers() override;
+  bool OnSwapBuffersAsync(const SwapCompletionCallback& callback) override;
+  scoped_ptr<gfx::VSyncProvider> CreateVSyncProvider() override;
+  bool IsUniversalDisplayLinkDevice() override;
+
+ protected:
+  DrmWindow* window_delegate_;
+  DrmDeviceManager* drm_device_manager_;
+
+  DISALLOW_COPY_AND_ASSIGN(GbmSurfaceless);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_SURFACELESS_H_