Pass camera facing to WebKit

content/renderer/media/media_stream_video_track.cc

Index: content/renderer/media/media_stream_video_track.cc
diff --git a/content/renderer/media/media_stream_video_track.cc b/content/renderer/media/media_stream_video_track.cc
index dede54fecb104f1e46e97f43eb0ba1d2ed1dea20..552cf2c4ac060119ba716017d36e2ed497ce6f09 100644
--- a/content/renderer/media/media_stream_video_track.cc
+++ b/content/renderer/media/media_stream_video_track.cc
@@ -307,6 +307,20 @@ void MediaStreamVideoTrack::getSettings(
       settings.frameRate = format->frame_rate;
       settings.width = format->frame_size.width();
       settings.height = format->frame_size.height();
+      media::CameraFacing facing = source_->GetCameraFacing();

[mcasas, 2017/01/05 20:26:37]

nit: const

[shenghao, 2017/01/06 09:43:01]

Done.

+      switch (facing) {
+        case media::CameraFacing::FRONT:
+          settings.facingMode =
+              blink::WebMediaStreamTrack::Settings::VideoFacingMode::User;
+          break;
+        case media::CameraFacing::BACK:
+          settings.facingMode = blink::WebMediaStreamTrack::Settings::
+              VideoFacingMode::Environment;
+          break;
+        default:

[miu, 2017/01/05 21:55:33]

Don't include default clauses: Let the compiler force developers making future
changes to the enum to have to also change this code.

[shenghao, 2017/01/06 09:43:01]

Done.

+          DVLOG(1) << "Unrecongnized CameraFacing value" << facing;

[mcasas, 2017/01/05 20:26:37]

s/Unrecongnized/Unrecognized/

s/DVLOG(1)/DLOG(ERROR)/ ?

[shenghao, 2017/01/06 09:43:01]

Deleted

+          break;
+      }
     }
   }
   // TODO(hta): Extract the real value.