Sample code: IPC Transport object for GPU

content/common/gpu/client/ipc/gpu_video_encode_accelerator_host_ipc_transport.h

Index: content/common/gpu/client/ipc/gpu_video_encode_accelerator_host_ipc_transport.h
diff --git a/content/common/gpu/client/ipc/gpu_video_encode_accelerator_host_ipc_transport.h b/content/common/gpu/client/ipc/gpu_video_encode_accelerator_host_ipc_transport.h
new file mode 100644
index 0000000000000000000000000000000000000000..3f6e2cb1fddb424a309ec95f147b08f2206fd97e
--- /dev/null
+++ b/content/common/gpu/client/ipc/gpu_video_encode_accelerator_host_ipc_transport.h
@@ -0,0 +1,58 @@
+// Copyright 2016 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_CLIENT_IPC_GPU_VIDEO_ENCODE_ACCELERATOR_HOST_IPC_TRANSPORT_H_
+#define CONTENT_COMMON_GPU_CLIENT_IPC_GPU_VIDEO_ENCODE_ACCELERATOR_HOST_IPC_TRANSPORT_H_
+
+#include <stdint.h>
+
+#include "media/video/video_encode_accelerator.h"
+
+namespace content {
+
+struct VideoEncodeParams;
+struct VideoEncodeParams2;
+
+class GpuVideoEncodeAcceleratorHostIPCTransport {
+ public:
+  class Client {
+   public:
+    virtual void OnRequireBitstreamBuffers(uint32_t input_count,
+                                           const gfx::Size& input_coded_size,
+                                           uint32_t output_buffer_size) = 0;
+
+    virtual void OnNotifyInputDone(int32_t frame_id) = 0;
+
+    virtual void OnBitstreamBufferReady(int32_t bitstream_buffer_id,
+                                        uint32_t payload_size,
+                                        bool key_frame) = 0;
+
+    virtual void OnNotifyError(media::VideoEncodeAccelerator::Error error) = 0;
+
+   protected:
+    virtual ~Client() {}
+  };
+
+  virtual ~GpuVideoEncodeAcceleratorHostIPCTransport() {}
+
+  virtual bool Destroy() = 0;
+
+  virtual bool Encode(const content::VideoEncodeParams& params) = 0;
+
+  virtual bool Encode2(const content::VideoEncodeParams2& params) = 0;
+
+  virtual bool RequestEncodingParametersChange(uint32_t bitrate,
+                                               uint32_t framerate) = 0;
+
+  virtual void SetClient(Client* client) = 0;
+
+  virtual bool UseOutputBitstreamBuffer(
+      int32_t buffer_id,
+      const base::SharedMemoryHandle& buffer_handle,
+      uint32_t buffer_size) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_CLIENT_IPC_GPU_VIDEO_ENCODE_ACCELERATOR_HOST_IPC_TRANSPORT_H_