How to pass page's meta tags in ASP.NET MVC?

<head>
<asp:ContentPlaceHolder ID="cphHead" runat="server">
    <title>Default Title</title>
    <meta name="description" content="Default Description" />
    <meta name="keywords" content="Default Keywords" />
</asp:ContentPlaceHolder>
</head>

<asp:Content ID="headContent" ContentPlaceHolderID="cphHead" runat="server">
    <title>Page Specific Title</title>
    <meta name="description" content="Page Specific Description" />
    <meta name="keywords" content="Page Specific Keywords" />
</asp:Content>

public class BaseViewData
{
    public string Title { get; set; }
    public string MetaKeywords { get; set; }
    public string MetaDescription { get; set; }
}

public partial class Site : System.Web.Mvc.ViewMasterPage<BaseViewData>
{
}

<title><%=ViewData.Model.Title %></title>
<meta name="keywords" content="<%=ViewData.Model.MetaKeywords %>" />
<meta name="description" content="<%=ViewData.Model.MetaDescription %>" />