Add method cricket::VideoCapturer::NeedsDenoising, use in VideoCapturerTrackSource.

webrtc/media/base/videocapturer.h

Index: webrtc/media/base/videocapturer.h
diff --git a/webrtc/media/base/videocapturer.h b/webrtc/media/base/videocapturer.h
index c9c96eeb1d299cb06eaad73c8d4734cfdc357eac..9e0df86588bf28f0f52d68f7e475e8a3dcda8f22 100644
--- a/webrtc/media/base/videocapturer.h
+++ b/webrtc/media/base/videocapturer.h
@@ -175,6 +175,11 @@ class VideoCapturer : public sigslot::has_slots<>,
   // implement screencast specific behavior.
   virtual bool IsScreencast() const = 0;
 
+  // Returns denoising preference. Unset means use encoder-specific default.
+  rtc::Optional<bool> NeedsDenoising() const {

[pbos-webrtc, 2016/09/12 14:50:45]

virtual, since you want this to be overridden.

[nisse-webrtc, 2016/09/13 09:39:10]

Fixed in next upload. Good catch.

+    return rtc::Optional<bool>();
+  }
+
   // Caps the VideoCapturer's format according to max_format. It can e.g. be
   // used to prevent cameras from capturing at a resolution or framerate that
   // the capturer is capable of but not performing satisfactorily at.