Blink Animation: Limit maximum accuracy to avoid hanging for long durations.

ui/gfx/geometry/cubic_bezier.h

Index: ui/gfx/geometry/cubic_bezier.h
diff --git a/ui/gfx/geometry/cubic_bezier.h b/ui/gfx/geometry/cubic_bezier.h
index 10b9a9121a812cacaffeeaca6d1743e38c0a4369..013123999c5c729543359685474f7924bc79a1cd 100644
--- a/ui/gfx/geometry/cubic_bezier.h
+++ b/ui/gfx/geometry/cubic_bezier.h
@@ -32,6 +32,8 @@ class GFX_EXPORT CubicBezier {
     return (3.0 * ay_ * t + 2.0 * by_) * t + cy_;
   }
 
+  static double GetDefaultEpsilon();
+
   // Given an x value, find a parametric value it came from.
   // x must be in [0, 1] range. Doesn't use gradients.
   double SolveCurveX(double x, double epsilon) const;