Index: ui/base/animation/tween.cc |
diff --git a/ui/base/animation/tween.cc b/ui/base/animation/tween.cc |
index c1e4a472f1ff9da834b2f488212d0563eef6ec56..fa299c193724544e5acaca0f1d22332f194b97d1 100644 |
--- a/ui/base/animation/tween.cc |
+++ b/ui/base/animation/tween.cc |
@@ -42,6 +42,9 @@ double Tween::CalculateValue(Tween::Type type, double state) { |
case EASE_OUT: |
return 1.0 - pow(1.0 - state, 2); |
+ case SMOOTH_IN_OUT: |
+ return sin(state); |
+ |
case ZERO: |
return 0; |
} |