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 cc37a91736e9e1df696e32ecbba445ff0bd43c4b..1f29cf5b1e74550bbea1cc3acbe2fa24de37a705 100644
--- a/webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc
+++ b/webrtc/media/engine/videoencodersoftwarefallbackwrapper.cc
@@ -169,4 +169,9 @@ bool VideoEncoderSoftwareFallbackWrapper::SupportsNativeHandle() const {
   return encoder_->SupportsNativeHandle();
 }
 
+VideoEncoder::ScalingSettings
+VideoEncoderSoftwareFallbackWrapper::GetScalingSettings() const {
+  return encoder_->GetScalingSettings();
+}
+
 }  // namespace webrtc