Report if video capturing meets output protection requirement.

content/renderer/media/media_stream_video_capturer_source.h

Index: content/renderer/media/media_stream_video_capturer_source.h
diff --git a/content/renderer/media/media_stream_video_capturer_source.h b/content/renderer/media/media_stream_video_capturer_source.h
index 2d79f944b84845cd5d5ae410d6b0bd5b879c473a..40a9ba66d144d451402b3e07e891829d340193b7 100644
--- a/content/renderer/media/media_stream_video_capturer_source.h
+++ b/content/renderer/media/media_stream_video_capturer_source.h
@@ -35,6 +35,8 @@ class CONTENT_EXPORT MediaStreamVideoCapturerSource
   // Implements MediaStreamVideoSource.
   void RequestRefreshFrame() override;
 
+  void SetCapturingLinkSecured(bool is_secure) override;
+
  private:
   friend class CanvasCaptureHandlerTest;
   friend class MediaStreamVideoCapturerSourceTest;
@@ -59,6 +61,9 @@ class CONTENT_EXPORT MediaStreamVideoCapturerSource
   // The source that provides video frames.
   const std::unique_ptr<media::VideoCapturerSource> source_;
 
+  // Return true if the video frames are from local video capturer.
+  bool is_local_video_capturer_source_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoCapturerSource);
 };