[Mojo Video Capture] Introduce abstraction VideoCaptureSystem

media/capture/video/video_capture_device_info.h

Index: media/capture/video/video_capture_device_info.h
diff --git a/media/capture/video/video_capture_device_info.h b/media/capture/video/video_capture_device_info.h
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+// Copyright 2017 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_VIDEO_CAPTURE_DEVICE_INFO_H_
+#define MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_INFO_H_
+
+#include "media/capture/video/video_capture_device_descriptor.h"
+#include "media/capture/video_capture_types.h"
+
+namespace media {
+
+// Bundles a media::VideoCaptureDeviceDescriptor with corresponding supported
+// video formats.
+struct CAPTURE_EXPORT VideoCaptureDeviceInfo {
+  VideoCaptureDeviceInfo();
+  VideoCaptureDeviceInfo(media::VideoCaptureDeviceDescriptor descriptor);
+  VideoCaptureDeviceInfo(const VideoCaptureDeviceInfo& other);
+  ~VideoCaptureDeviceInfo();
+  VideoCaptureDeviceInfo& operator=(const VideoCaptureDeviceInfo& other);
+
+  media::VideoCaptureDeviceDescriptor descriptor;
+  media::VideoCaptureFormats supported_formats;
+};
+
+}  // namespace media
+
+#endif  // MEDIA_CAPTURE_VIDEO_VIDEO_CAPTURE_DEVICE_INFO_H_