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..6304eaba73545621cdbd5ee6b8e44d006ba77e55 100644
--- a/content/renderer/media/media_stream_video_capturer_source.h
+++ b/content/renderer/media/media_stream_video_capturer_source.h
@@ -10,6 +10,7 @@
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "content/common/media/video_capture.h"
+#include "content/public/renderer/render_frame.h"
 #include "content/renderer/media/media_stream_video_source.h"
 
 namespace media {
@@ -29,12 +30,15 @@ class CONTENT_EXPORT MediaStreamVideoCapturerSource
       const SourceStoppedCallback& stop_callback,
       std::unique_ptr<media::VideoCapturerSource> source);
   MediaStreamVideoCapturerSource(const SourceStoppedCallback& stop_callback,
-                                 const StreamDeviceInfo& device_info);
+                                 const StreamDeviceInfo& device_info,
+                                 RenderFrame* render_frame);
   ~MediaStreamVideoCapturerSource() override;
 
   // Implements MediaStreamVideoSource.
   void RequestRefreshFrame() override;
 
+  void SetCapturingLinkSecured(bool is_secure) override;
+
  private:
   friend class CanvasCaptureHandlerTest;
   friend class MediaStreamVideoCapturerSourceTest;
@@ -59,6 +63,9 @@ class CONTENT_EXPORT MediaStreamVideoCapturerSource
   // The source that provides video frames.
   const std::unique_ptr<media::VideoCapturerSource> source_;
 
+  // This is used to send IPC messages to the browser process.
+  RenderFrame* const render_frame_;  // Not owned.

[miu, 2016/05/06 18:56:22]

For safety, instead of having this render_frame_ member, you should have this
class extend content::RenderFrameObserver. That way,
MediaStreamVideoCapturerSource will be notified whenever the RenderFrame is
destroyed.

[xjz, 2016/05/06 22:08:45]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoCapturerSource);
 };