Move usage of QualityScaler to ViEEncoder.

webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc

Index: webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc
diff --git a/webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc b/webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc
index cd39f68c1a9b4fc32690daef492cfd8571b037b5..6f2cb1ceef1ea944192b2111d4aac0a5ad825bdf 100644
--- a/webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc
+++ b/webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc
@@ -163,4 +163,9 @@ bool VideoEncoderSoftwareFallbackWrapper::SupportsNativeHandle() const {
   return encoder_->SupportsNativeHandle();
 }
 
+VideoEncoder::ScalingSettings
+VideoEncoderSoftwareFallbackWrapper::GetScalingSettings() const {
+  return encoder_->GetScalingSettings();
+}
+
 }  // namespace webrtc