[Mojo Video Capture] Adapt video_capture service to refactored video capture stack

media/capture/video/shared_memory_buffer_handle.h

+// 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 MEDIA_CAPTURE_VIDEO_SHARED_MEMORY_BUFFER_HANDLE_H_
+#define MEDIA_CAPTURE_VIDEO_SHARED_MEMORY_BUFFER_HANDLE_H_
+
+#include "media/capture/capture_export.h"
+#include "media/capture/video/video_capture_buffer_handle.h"
+
+namespace media {
+
+class CAPTURE_EXPORT SharedMemoryBufferHandle
+    : public VideoCaptureBufferHandle {
+ public:
+  explicit SharedMemoryBufferHandle(base::SharedMemory* shared_memory,
+                                    size_t mapped_size);
+  ~SharedMemoryBufferHandle() override;
+
+  size_t mapped_size() const override;
+  uint8_t* data() override;

[emircan, 2017/04/19 18:16:48]

Can we also mark this method as const in the base class? 

[chfremer, 2017/04/19 23:03:37]

Done.

+  const uint8_t* data() const override;
+
+ private:
+  base::SharedMemory* shared_memory_;

[emircan, 2017/04/19 18:16:48]

base::SharedMemory* const shared_memory_;

[chfremer, 2017/04/19 23:03:37]

Done.

+  size_t mapped_size_;

[emircan, 2017/04/19 18:16:48]

const

[chfremer, 2017/04/19 23:03:37]

Done.

+};
+
+}  // namespace media
+
+#endif  // MEDIA_CAPTURE_VIDEO_SHARED_MEMORY_BUFFER_HANDLE_H_