Fix for left-shift of potentially negative values in NetEq.

webrtc/modules/audio_coding/neteq/expand.cc

Index: webrtc/modules/audio_coding/neteq/expand.cc
diff --git a/webrtc/modules/audio_coding/neteq/expand.cc b/webrtc/modules/audio_coding/neteq/expand.cc
index da870d77064c559fcf6d7e5541ca1a50a7a5bf88..2154bfde637179f522f3f2d44c30b97ac244ad82 100644
--- a/webrtc/modules/audio_coding/neteq/expand.cc
+++ b/webrtc/modules/audio_coding/neteq/expand.cc
@@ -441,7 +441,7 @@ void Expand::AnalyzeSignal(int16_t* random_vector) {
   for (size_t i = 0; i < kNumCorrelationCandidates; ++i) {
     int32_t ratio;
     if (best_distortion[i] > 0) {
-      ratio = (best_correlation[i] << 16) / best_distortion[i];
+      ratio = (best_correlation[i] * (1 << 16)) / best_distortion[i];
     } else if (best_correlation[i] == 0) {
       ratio = 0;  // No correlation set result to zero.
     } else {