Pass camera facing to WebKit

media/capture/video_capturer_source.h

Index: media/capture/video_capturer_source.h
diff --git a/media/capture/video_capturer_source.h b/media/capture/video_capturer_source.h
index 91879cfa7d7ca04bf754939bf7265168c7e4a82b..81e4e297b1e8affdcc245776ba7f36f41db17fb5 100644
--- a/media/capture/video_capturer_source.h
+++ b/media/capture/video_capturer_source.h
@@ -114,6 +114,8 @@ class CAPTURE_EXPORT VideoCapturerSource {
   // may still occur after this call, so the caller must take care to
   // use refcounted or weak references in |new_frame_callback|.
   virtual void StopCapture() = 0;
+
+  virtual CameraFacing GetCameraFacing() { return CameraFacing::FRONT; }

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

This should be s/FRONT/DEFAULT/ or perhaps
/UNKNOWN/, right? Because we don't know at
this point where is the camera pointing to, and
it could be movable like a USB one.

What about making this method const?

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

Done.

 };
 
 }  // namespace media