Pass camera facing to WebKit

media/capture/video/video_capture_device_descriptor.h

Index: media/capture/video/video_capture_device_descriptor.h
diff --git a/media/capture/video/video_capture_device_descriptor.h b/media/capture/video/video_capture_device_descriptor.h
index ea2331a17bc4b9b2ad76ddb24c3fdabb2362a113..84ff841dbf4347b67cc29e1534f66bd6cf7c1c53 100644
--- a/media/capture/video/video_capture_device_descriptor.h
+++ b/media/capture/video/video_capture_device_descriptor.h
@@ -8,6 +8,7 @@
 #include <string>
 #include <vector>
 
+#include "media/base/video_facing.h"
 #include "media/capture/capture_export.h"
 
 namespace media {
@@ -48,12 +49,14 @@ struct CAPTURE_EXPORT VideoCaptureDeviceDescriptor {
       VideoCaptureApi capture_api = VideoCaptureApi::UNKNOWN,
       VideoCaptureTransportType transport_type =
           VideoCaptureTransportType::OTHER_TRANSPORT);
-  VideoCaptureDeviceDescriptor(const std::string& display_name,
-                               const std::string& device_id,
-                               const std::string& model_id,
-                               VideoCaptureApi capture_api,
-                               VideoCaptureTransportType transport_type =
-                                   VideoCaptureTransportType::OTHER_TRANSPORT);
+  VideoCaptureDeviceDescriptor(
+      const std::string& display_name,
+      const std::string& device_id,
+      const std::string& model_id,
+      VideoCaptureApi capture_api,
+      VideoCaptureTransportType transport_type =
+          VideoCaptureTransportType::OTHER_TRANSPORT,
+      VideoFacingMode facing = VideoFacingMode::MEDIA_VIDEO_FACING_NONE);
   VideoCaptureDeviceDescriptor(const VideoCaptureDeviceDescriptor& other);
   ~VideoCaptureDeviceDescriptor();
 
@@ -80,6 +83,8 @@ struct CAPTURE_EXPORT VideoCaptureDeviceDescriptor {
   // otherwise.
   std::string model_id;
 
+  VideoFacingMode facing;
+
   VideoCaptureApi capture_api;
   VideoCaptureTransportType transport_type;
 };