Let ViEEncoder express resolution requests as Sinkwants

webrtc/media/base/mediachannel.h

Index: webrtc/media/base/mediachannel.h
diff --git a/webrtc/media/base/mediachannel.h b/webrtc/media/base/mediachannel.h
index b71a309233546f941150431bf5df4aca8f46b095..78d0fe0dc7b87634f28551efb0b098e6cdef5a21 100644
--- a/webrtc/media/base/mediachannel.h
+++ b/webrtc/media/base/mediachannel.h
@@ -104,9 +104,7 @@ struct MediaConfig {
   // Video-specific config.
   struct Video {
     // Enable WebRTC CPU Overuse Detection. This flag comes from the
-    // PeerConnection constraint 'googCpuOveruseDetection' and is
-    // checked in WebRtcVideoChannel2::OnLoadUpdate, where it's passed
-    // to VideoCapturer::video_adapter()->OnCpuResolutionRequest.
+    // PeerConnection constraint 'googCpuOveruseDetection'.
     bool enable_cpu_overuse_detection = true;
 
     // Enable WebRTC suspension of video. No video frames will be sent