Sample code: IPC Transport object for GPU

content/common/gpu/video_encode_params.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 CONTENT_COMMON_GPU_VIDEO_ENCODE_PARAMS_H_
+#define CONTENT_COMMON_GPU_VIDEO_ENCODE_PARAMS_H_
+
+#include <vector>
+
+#include "base/memory/shared_memory_handle.h"
+#include "base/time/time.h"
+#include "content/common/content_export.h"
+#include "ui/gfx/gpu_memory_buffer.h"
+
+namespace content {
+
+struct CONTENT_EXPORT VideoEncodeParams {
+  VideoEncodeParams();
+  ~VideoEncodeParams();
+
+  int32_t frame_id;
+  base::TimeDelta timestamp;
+  base::SharedMemoryHandle buffer_handle;
+  uint32_t buffer_offset;
+  uint32_t buffer_size;
+  bool force_keyframe;
+};
+
+struct CONTENT_EXPORT VideoEncodeParams2 {
+  VideoEncodeParams2();
+  ~VideoEncodeParams2();
+
+  int32_t frame_id;
+  base::TimeDelta timestamp;
+  std::vector<gfx::GpuMemoryBufferHandle> gpu_memory_buffer_handles;
+  gfx::Size size;
+  bool force_keyframe;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_VIDEO_ENCODE_PARAMS_H_