Support texture scaling in Androids MediaEncoder

webrtc/modules/video_coding/utility/quality_scaler.cc

Index: webrtc/modules/video_coding/utility/quality_scaler.cc
diff --git a/webrtc/modules/video_coding/utility/quality_scaler.cc b/webrtc/modules/video_coding/utility/quality_scaler.cc
index 9aae17c6b6684d793adbd8dd38f052a54cd16219..cc1cfd1174963c30b1b5a72610b24ebae236aa8e 100644
--- a/webrtc/modules/video_coding/utility/quality_scaler.cc
+++ b/webrtc/modules/video_coding/utility/quality_scaler.cc
@@ -111,7 +111,7 @@ void QualityScaler::OnEncodeFrame(const VideoFrame& frame) {
   }
 }
 
-QualityScaler::Resolution QualityScaler::GetScaledResolution() const {
+const QualityScaler::Resolution& QualityScaler::GetScaledResolution() const {
   return res_;
 }