gfx: Struct traits for GpuMemoryBufferHandle.

ui/gfx/native_pixmap_handle_ozone.h

-// Copyright 2015 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_GFX_NATIVE_PIXMAP_HANDLE_OZONE_H_
-#define UI_GFX_NATIVE_PIXMAP_HANDLE_OZONE_H_
-
-#include <stdint.h>
-#include <vector>
-
-#include "base/file_descriptor_posix.h"
-#include "ui/gfx/gfx_export.h"
-
-namespace gfx {
-
-// NativePixmapPlane is used to carry the plane related information for GBM
-// buffer. More fields can be added if they are plane specific.
-struct GFX_EXPORT NativePixmapPlane {
-  NativePixmapPlane();
-  NativePixmapPlane(int stride, int offset, uint64_t modifier);
-  NativePixmapPlane(const NativePixmapPlane& other);
-  ~NativePixmapPlane();
-
-  // The strides and offsets in bytes to be used when accessing the buffers via
-  // a memory mapping. One per plane per entry.
-  int stride;
-  int offset;
-  // The modifier is retrieved from GBM library and passed to EGL driver.
-  // Generally it's platform specific, and we don't need to modify it in
-  // Chromium code. Also one per plane per entry.
-  uint64_t modifier;
-};
-
-struct GFX_EXPORT NativePixmapHandle {
-  NativePixmapHandle();
-  NativePixmapHandle(const NativePixmapHandle& other);
-
-  ~NativePixmapHandle();
-  // File descriptors for the underlying memory objects (usually dmabufs).
-  std::vector<base::FileDescriptor> fds;
-
-  std::vector<NativePixmapPlane> planes;
-};
-
-}  // namespace gfx
-
-#endif  // UI_GFX_NATIVE_PIXMAP_HANDLE_OZONE_H_