Replace manual conversions with Mojo type mappings

services/video_capture/public/interfaces/video_capture_device_descriptor_struct_traits.h

Index: services/video_capture/public/interfaces/video_capture_device_descriptor_struct_traits.h
diff --git a/services/video_capture/public/interfaces/video_capture_device_descriptor_struct_traits.h b/services/video_capture/public/interfaces/video_capture_device_descriptor_struct_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ef2d2865c8fc98e83195d03f6316a137b9c55a5
--- /dev/null
+++ b/services/video_capture/public/interfaces/video_capture_device_descriptor_struct_traits.h
@@ -0,0 +1,172 @@
+// 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_DESCRIPTOR_STRUCT_TRAITS_H_
+#define SERVICES_VIDEO_CAPTURE_PUBLIC_INTERFACES_VIDEO_CAPTURE_DEVICE_DESCRIPTOR_STRUCT_TRAITS_H_
+
+#include "media/capture/video/video_capture_device_descriptor.h"
+#include "services/video_capture/public/interfaces/video_capture_device_descriptor.mojom.h"
+
+namespace mojo {
+
+template <>
+struct EnumTraits<video_capture::mojom::VideoCaptureApi,
+                  media::VideoCaptureApi> {
+  static video_capture::mojom::VideoCaptureApi ToMojom(
+      media::VideoCaptureApi input) {
+    switch (input) {
+      case media::VideoCaptureApi::LINUX_V4L2_SINGLE_PLANE:
+        return video_capture::mojom::VideoCaptureApi::LINUX_V4L2_SINGLE_PLANE;
+      case media::VideoCaptureApi::WIN_MEDIA_FOUNDATION:
+        return video_capture::mojom::VideoCaptureApi::WIN_MEDIA_FOUNDATION;
+      case media::VideoCaptureApi::WIN_DIRECT_SHOW:
+        return video_capture::mojom::VideoCaptureApi::WIN_DIRECT_SHOW;
+      case media::VideoCaptureApi::MACOSX_AVFOUNDATION:
+        return video_capture::mojom::VideoCaptureApi::MACOSX_AVFOUNDATION;
+      case media::VideoCaptureApi::MACOSX_DECKLINK:
+        return video_capture::mojom::VideoCaptureApi::MACOSX_DECKLINK;
+      case media::VideoCaptureApi::ANDROID_API1:
+        return video_capture::mojom::VideoCaptureApi::ANDROID_API1;
+      case media::VideoCaptureApi::ANDROID_API2_LEGACY:
+        return video_capture::mojom::VideoCaptureApi::ANDROID_API2_LEGACY;
+      case media::VideoCaptureApi::ANDROID_API2_FULL:
+        return video_capture::mojom::VideoCaptureApi::ANDROID_API2_FULL;
+      case media::VideoCaptureApi::ANDROID_API2_LIMITED:
+        return video_capture::mojom::VideoCaptureApi::ANDROID_API2_LIMITED;
+      case media::VideoCaptureApi::ANDROID_TANGO:
+        return video_capture::mojom::VideoCaptureApi::ANDROID_TANGO;
+      case media::VideoCaptureApi::UNKNOWN:
+        return video_capture::mojom::VideoCaptureApi::UNKNOWN;
+    }
+    NOTREACHED();
+    return video_capture::mojom::VideoCaptureApi::UNKNOWN;
+  }
+
+  static bool FromMojom(video_capture::mojom::VideoCaptureApi input,
+                        media::VideoCaptureApi* output) {
+    switch (input) {
+      case video_capture::mojom::VideoCaptureApi::LINUX_V4L2_SINGLE_PLANE:
+        *output = media::VideoCaptureApi::LINUX_V4L2_SINGLE_PLANE;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::WIN_MEDIA_FOUNDATION:
+        *output = media::VideoCaptureApi::WIN_MEDIA_FOUNDATION;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::WIN_DIRECT_SHOW:
+        *output = media::VideoCaptureApi::WIN_DIRECT_SHOW;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::MACOSX_AVFOUNDATION:
+        *output = media::VideoCaptureApi::MACOSX_AVFOUNDATION;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::MACOSX_DECKLINK:
+        *output = media::VideoCaptureApi::MACOSX_DECKLINK;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::ANDROID_API1:
+        *output = media::VideoCaptureApi::ANDROID_API1;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::ANDROID_API2_LEGACY:
+        *output = media::VideoCaptureApi::ANDROID_API2_LEGACY;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::ANDROID_API2_FULL:
+        *output = media::VideoCaptureApi::ANDROID_API2_FULL;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::ANDROID_API2_LIMITED:
+        *output = media::VideoCaptureApi::ANDROID_API2_LIMITED;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::ANDROID_TANGO:
+        *output = media::VideoCaptureApi::ANDROID_TANGO;
+        return true;
+      case video_capture::mojom::VideoCaptureApi::UNKNOWN:
+        *output = media::VideoCaptureApi::UNKNOWN;
+        return true;
+    }
+    NOTREACHED();
+    return false;
+  }
+};
+
+template <>
+struct EnumTraits<video_capture::mojom::VideoCaptureTransportType,
+                  media::VideoCaptureTransportType> {
+  static video_capture::mojom::VideoCaptureTransportType ToMojom(
+      media::VideoCaptureTransportType input) {
+    switch (input) {
+      case media::VideoCaptureTransportType::MACOSX_USB_OR_BUILT_IN:
+        return video_capture::mojom::VideoCaptureTransportType::
+            MACOSX_USB_OR_BUILT_IN;
+      case media::VideoCaptureTransportType::OTHER_TRANSPORT:
+        return video_capture::mojom::VideoCaptureTransportType::OTHER_TRANSPORT;
+    }
+    NOTREACHED();
+    return video_capture::mojom::VideoCaptureTransportType::OTHER_TRANSPORT;
+  }
+
+  static bool FromMojom(video_capture::mojom::VideoCaptureTransportType input,
+                        media::VideoCaptureTransportType* output) {
+    switch (input) {
+      case video_capture::mojom::VideoCaptureTransportType::
+          MACOSX_USB_OR_BUILT_IN:
+        *output = media::VideoCaptureTransportType::MACOSX_USB_OR_BUILT_IN;
+        return true;
+      case video_capture::mojom::VideoCaptureTransportType::OTHER_TRANSPORT:
+        *output = media::VideoCaptureTransportType::OTHER_TRANSPORT;
+        return true;
+    }
+    NOTREACHED();
+    return false;
+  }
+};
+
+template <>
+struct StructTraits<video_capture::mojom::VideoCaptureDeviceDescriptorDataView,
+                    media::VideoCaptureDeviceDescriptor> {
+  static const std::string& display_name(
+      const media::VideoCaptureDeviceDescriptor& input) {
+    return input.display_name;
+  }
+
+  static const std::string& device_id(
+      const media::VideoCaptureDeviceDescriptor& input) {
+    return input.device_id;
+  }
+
+  static const std::string& model_id(
+      const media::VideoCaptureDeviceDescriptor& input) {
+    return input.model_id;
+  }
+
+  static media::VideoCaptureApi capture_api(
+      const media::VideoCaptureDeviceDescriptor& input) {
+    return input.capture_api;
+  }
+
+  static media::VideoCaptureTransportType transport_type(
+      const media::VideoCaptureDeviceDescriptor& input) {
+    return input.transport_type;
+  }
+
+  static bool Read(
+      video_capture::mojom::VideoCaptureDeviceDescriptorDataView data,
+      media::VideoCaptureDeviceDescriptor* output) {
+    if (!data.ReadDisplayName(&(output->display_name)))
+      return false;
+
+    if (!data.ReadDeviceId(&(output->device_id)))
+      return false;
+
+    if (!data.ReadModelId(&(output->model_id)))
+      return false;
+
+    if (!data.ReadCaptureApi(&(output->capture_api)))
+      return false;
+
+    if (!data.ReadTransportType(&(output->transport_type)))
+      return false;
+
+    return true;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // SERVICES_VIDEO_CAPTURE_PUBLIC_INTERFACES_VIDEO_CAPTURE_DEVICE_DESCRIPTOR_STRUCT_TRAITS_H_