Move frame scheduling logic from WebrtcFrameScheduler to WebrtcVideoStream.

remoting/protocol/webrtc_video_encoder_factory.cc

Index: remoting/protocol/webrtc_video_encoder_factory.cc
diff --git a/remoting/protocol/webrtc_video_encoder_factory.cc b/remoting/protocol/webrtc_video_encoder_factory.cc
index dcb9e052997c996e3f7ad2cc47f04d0a3c3f1662..95a2e3499756971d036e64eae93c24f717031f18 100644
--- a/remoting/protocol/webrtc_video_encoder_factory.cc
+++ b/remoting/protocol/webrtc_video_encoder_factory.cc
@@ -221,7 +221,7 @@ void WebrtcVideoEncoderFactory::SetKeyFrameRequestCallback(
     encoders_.front()->SetKeyFrameRequestCallback(key_frame_request);
   } else {
     LOG(ERROR) << "Dropping key frame request callback with unexpected"
-                  " number of encoders"
+                  " number of encoders: "
                << encoders_.size();
   }
 }
@@ -234,7 +234,7 @@ void WebrtcVideoEncoderFactory::SetTargetBitrateCallback(
     encoders_.front()->SetTargetBitrateCallback(target_bitrate_cb);
   } else {
     LOG(ERROR) << "Dropping target bitrate request callback with unexpected"
-                  " number of encoders"
+                  " number of encoders: "
                << encoders_.size();
   }
 }