InjectedRouteConstraint.cs

public class InjectedRouteConstraint<T> : IRouteConstraint where T : IRouteConstraint
{
    private IDependencyResolver _dependencyResolver { get; set; }
    public InjectedRouteConstraint(IDependencyResolver dependencyResolver)
    {
        _dependencyResolver = dependencyResolver;
    }

    public bool Match(HttpContextBase httpContext, Route route, string parameterName,  RouteValueDictionary values, RouteDirection routeDirection)
    {
      return _dependencyResolver.GetService<T>().Match(httpContext, route, parameterName, values, routeDirection);
    }
}