Add FacingMode to MediaStreamTrack.getSettings()

content/renderer/media/media_stream_video_track.cc

 // Copyright 2013 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.
 
 #include "content/renderer/media/media_stream_video_track.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 290 matching lines @@
 
 void MediaStreamVideoTrack::getSettings(
     blink::WebMediaStreamTrack::Settings& settings) {
   if (source_) {
     const media::VideoCaptureFormat* format = source_->GetCurrentFormat();
     if (format) {
       settings.frameRate = format->frame_rate;
       settings.width = format->frame_size.width();
       settings.height = format->frame_size.height();
     }
+    switch (source_->device_info().device.video_facing) {
+      case MEDIA_VIDEO_FACING_NONE:
+        settings.facingMode = blink::WebMediaStreamTrack::FacingMode::None;
+        break;
+      case MEDIA_VIDEO_FACING_USER:
+        settings.facingMode = blink::WebMediaStreamTrack::FacingMode::User;
+        break;
+      case MEDIA_VIDEO_FACING_ENVIRONMENT:
+        settings.facingMode =
+            blink::WebMediaStreamTrack::FacingMode::Environment;
+        break;
+      default:
+        settings.facingMode = blink::WebMediaStreamTrack::FacingMode::None;
+        break;
+    }
   }
   // TODO(hta): Extract the real value.
   settings.deviceId = blink::WebString("video device ID");
 }
 
 void MediaStreamVideoTrack::OnReadyStateChanged(
     blink::WebMediaStreamSource::ReadyState state) {
   DCHECK(main_render_thread_checker_.CalledOnValidThread());
   for (auto* sink : sinks_)
     sink->OnReadyStateChanged(state);
 }
 
 }  // namespace content