Pass camera facing to WebKit

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 289 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();
+      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.
   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