Pass camera facing to WebKit

content/renderer/media/media_stream_video_capturer_source.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_CAPTURER_SOURCE_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_CAPTURER_SOURCE_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 16 matching lines @@
     : public MediaStreamVideoSource,
       public RenderFrameObserver {
  public:
   MediaStreamVideoCapturerSource(
       const SourceStoppedCallback& stop_callback,
       std::unique_ptr<media::VideoCapturerSource> source);
   MediaStreamVideoCapturerSource(const SourceStoppedCallback& stop_callback,
                                  const StreamDeviceInfo& device_info,
                                  RenderFrame* render_frame);
   ~MediaStreamVideoCapturerSource() override;
+  media::mojom::VideoFacingMode GetVideoFacing() override;

[hta - Chromium, 2017/01/12 19:36:41]

Why are you introducing a new mojom enum instead of using the VideoFacingMode
from media_stream_request.h?

[shenghao, 2017/01/13 11:09:34]

Deleted

 
  private:
   friend class CanvasCaptureHandlerTest;
   friend class MediaStreamVideoCapturerSourceTest;
 
   // MediaStreamVideoSource overrides.
   void RequestRefreshFrame() override;
   void OnHasConsumers(bool has_consumers) override;
   void OnCapturingLinkSecured(bool is_secure) override;
   void GetCurrentSupportedFormats(
@@ skipping 22 matching lines @@
   // StartSourceImpl() when starting the capture, and is reset after starting
   // is completed.
   bool is_capture_starting_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoCapturerSource);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_CAPTURER_SOURCE_H_