[Material][Mac] Implement Omnibox Verbose State Chips

ui/gfx/animation/tween.cc

Index: ui/gfx/animation/tween.cc
diff --git a/ui/gfx/animation/tween.cc b/ui/gfx/animation/tween.cc
index e608ee58e1954ffb4874ae24ee5471bafc07ec0c..015a671b002a5d9075733acc22b45ab950e3120f 100644
--- a/ui/gfx/animation/tween.cc
+++ b/ui/gfx/animation/tween.cc
@@ -58,6 +58,9 @@ double Tween::CalculateValue(Tween::Type type, double state) {
     case FAST_OUT_SLOW_IN:
       return gfx::CubicBezier(0.4, 0, 0.2, 1).Solve(state);
 
+    case FAST_OUT_SLOW_IN_EXPO:
+      return gfx::CubicBezier(0, 0.8, 0.2, 1).Solve(state);
+
     case LINEAR_OUT_SLOW_IN:
       return gfx::CubicBezier(0, 0, .2, 1).Solve(state);