VideoCapture: migrate VideoCapture renderer-->host messages to mojo, part 2

services/video_capture/public/interfaces/video_capture_device_proxy_traits.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 SERVICES_VIDEO_CAPTURE_PUBLIC_INTERFACES_VIDEO_CAPTURE_DEVICE_PROXY_TYPEMAP_H_
+#define SERVICES_VIDEO_CAPTURE_PUBLIC_INTERFACES_VIDEO_CAPTURE_DEVICE_PROXY_TYPEMAP_H_
+
+#include "media/base/video_capture_types.h"
+#include "mojo/common/common_custom_types_struct_traits.h"
+#include "services/video_capture/public/interfaces/video_capture_device_proxy.mojom.h"
+
+namespace mojo {
+
+template <>
+struct EnumTraits<video_capture::mojom::ResolutionChangePolicy,
+                  media::ResolutionChangePolicy> {
+  static video_capture::mojom::ResolutionChangePolicy ToMojom(
+      media::ResolutionChangePolicy policy);
+
+  static bool FromMojom(video_capture::mojom::ResolutionChangePolicy input,
+                        media::ResolutionChangePolicy* out);
+};
+
+template <>
+struct EnumTraits<video_capture::mojom::PowerLineFrequency,
+                  media::PowerLineFrequency> {
+  static video_capture::mojom::PowerLineFrequency ToMojom(
+      media::PowerLineFrequency frequency);
+
+  static bool FromMojom(video_capture::mojom::PowerLineFrequency input,
+                        media::PowerLineFrequency* out);
+};
+
+}
+
+#endif  // SERVICES_VIDEO_CAPTURE_PUBLIC_INTERFACES_VIDEO_CAPTURE_DEVICE_PROXY_TYPEMAP_H_