Sample code: IPC Transport object for GPU

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

Index: content/common/gpu/client/ipc/gpu_jpeg_decode_accelerator_host_ipc_transport.h
diff --git a/content/common/gpu/client/ipc/gpu_jpeg_decode_accelerator_host_ipc_transport.h b/content/common/gpu/client/ipc/gpu_jpeg_decode_accelerator_host_ipc_transport.h
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index 0000000000000000000000000000000000000000..59f7a396db7b7bbfe90b32f964a7d72be5ef49f4
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+++ b/content/common/gpu/client/ipc/gpu_jpeg_decode_accelerator_host_ipc_transport.h
@@ -0,0 +1,43 @@
+// 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_JPEG_DECODE_ACCELERATOR_HOST_IPC_TRANSPORT_H_
+#define CONTENT_COMMON_GPU_CLIENT_IPC_GPU_JPEG_DECODE_ACCELERATOR_HOST_IPC_TRANSPORT_H_
+
+#include <stdint.h>
+
+#include "media/video/jpeg_decode_accelerator.h"
+
+namespace content {
+
+struct JpegDecodeParams;
+
+// Note: The implementation of this interface is assumed to live on the UI
+// thread.
+class GpuJpegDecodeAcceleratorHostIPCTransport {
+ public:
+  // Note: This listener is assumed to live on the IO thread.
+  class Client {
+   public:
+    virtual void OnDecodeAck(int32_t bitstream_buffer_id,
+                             media::JpegDecodeAccelerator::Error error) = 0;
+
+   protected:
+    virtual ~Client() {}
+  };
+
+  virtual ~GpuJpegDecodeAcceleratorHostIPCTransport() {}
+
+  virtual bool CreateJpegDecoder(bool* succeeded) = 0;
+
+  virtual bool Decode(const JpegDecodeParams& params) = 0;
+
+  virtual bool Destroy() = 0;
+
+  virtual void SetClient(Client* client) = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_COMMON_GPU_CLIENT_IPC_GPU_JPEG_DECODE_ACCELERATOR_HOST_IPC_TRANSPORT_H_