Move usage of QualityScaler to ViEEncoder.

webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc

Index: webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
diff --git a/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc b/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
index 1c8037a60e9ce4657a146cd0ba888798e416ac40..0ddcacfe552773a5ed11c5ad15e1a7fa7950f87e 100644
--- a/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
+++ b/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
@@ -471,6 +471,14 @@ bool SimulcastEncoderAdapter::SupportsNativeHandle() const {
   return true;
 }
 
+QualityScaler::Settings SimulcastEncoderAdapter::GetQPThresholds() const {
+  // Turn off quality scaling for simulcast

[sprang_webrtc, 2016/10/27 13:43:48]

nit: End comments with a period.

[kthelgason, 2016/10/28 13:20:14]

Done.

+  if (NumberOfStreams(codec_) == 1)
+    return streaminfos_[0].encoder->GetQPThresholds();
+  else
+    return QualityScaler::Settings(false);

[sprang_webrtc, 2016/10/27 13:43:48]

nit: use {} brackets with if+else even if single line statements.

[kthelgason, 2016/10/28 13:20:14]

Done.

+}
+
 const char* SimulcastEncoderAdapter::ImplementationName() const {
   return implementation_name_.c_str();
 }