4 files changed, 7 insertions, 17 deletions
diff --git a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRequestBase.cs b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRequestBase.cs
index e6bbc34..9ab6837 100644
--- a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRequestBase.cs
+++ b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenRequestBase.cs
@@ -45,7 +45,7 @@ namespace DotNetOpenAuth.OAuth2.Messages {
 		/// <summary>
 		/// Gets or sets the result of calling the authorization server host's access token creation method.
 		/// </summary>
-		AccessTokenResult IAccessTokenRequestInternal.AccessTokenResult { get; set; }
+		IAccessTokenResult IAccessTokenRequestInternal.AccessTokenResult { get; set; }
 
 		/// <summary>
 		/// Gets the type of the grant.
diff --git a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/EndUserAuthorizationImplicitRequest.cs b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/EndUserAuthorizationImplicitRequest.cs
index 4b662cd..8932cd3 100644
--- a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/EndUserAuthorizationImplicitRequest.cs
+++ b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/EndUserAuthorizationImplicitRequest.cs
@@ -45,7 +45,7 @@ namespace DotNetOpenAuth.OAuth2.Messages {
 		/// <summary>
 		/// Gets or sets the result of calling the authorization server host's access token creation method.
 		/// </summary>
-		AccessTokenResult IAccessTokenRequestInternal.AccessTokenResult { get; set; }
+		IAccessTokenResult IAccessTokenRequestInternal.AccessTokenResult { get; set; }
 
 		/// <summary>
 		/// Gets a value indicating whether the client requesting the access token has authenticated itself.
diff --git a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/IAccessTokenRequestInternal.cs b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/IAccessTokenRequestInternal.cs
index 44af074..b79d566 100644
--- a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/IAccessTokenRequestInternal.cs
+++ b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/IAccessTokenRequestInternal.cs
@@ -17,6 +17,6 @@ namespace DotNetOpenAuth.OAuth2.Messages {
 		/// <summary>
 		/// Gets or sets the result of calling the authorization server host's access token creation method.
 		/// </summary>
-		AccessTokenResult AccessTokenResult { get; set; }
+		IAccessTokenResult AccessTokenResult { get; set; }
 	}
 }
diff --git a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenResult.cs b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/IAccessTokenResult.cs
index 11e486b..1719984 100644
--- a/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/AccessTokenResult.cs
+++ b/src/DotNetOpenAuth.OAuth2.ClientAuthorization/OAuth2/Messages/IAccessTokenResult.cs
@@ -1,5 +1,5 @@
 //-----------------------------------------------------------------------
-// <copyright file="AccessTokenResult.cs" company="Andrew Arnott">
+// <copyright file="IAccessTokenResult.cs" company="Andrew Arnott">
 //     Copyright (c) Andrew Arnott. All rights reserved.
 // </copyright>
 //-----------------------------------------------------------------------
@@ -14,17 +14,7 @@ namespace DotNetOpenAuth.OAuth2 {
 	/// <summary>
 	/// Describes the parameters to be fed into creating a response to an access token request.
 	/// </summary>
-	public class AccessTokenResult {
-		/// <summary>
-		/// Initializes a new instance of the <see cref="AccessTokenResult"/> class.
-		/// </summary>
-		/// <param name="accessToken">The access token to include in this result.</param>
-		public AccessTokenResult(AccessToken accessToken) {
-			Requires.NotNull(accessToken, "accessToken");
-			this.AllowRefreshToken = true;
-			this.AccessToken = accessToken;
-		}
-
+	public interface IAccessTokenResult {
 		/// <summary>
 		/// Gets or sets a value indicating whether to provide the client with a refresh token, when applicable.
 		/// </summary>
@@ -33,11 +23,11 @@ namespace DotNetOpenAuth.OAuth2 {
 		/// The refresh token will never be provided when this value is false.
 		/// The refresh token <em>may</em> be provided when this value is true.
 		/// </remarks>
-		public bool AllowRefreshToken { get; set; }
+		bool AllowRefreshToken { get; set; }
 
 		/// <summary>
 		/// Gets the access token.
 		/// </summary>
-		public AccessToken AccessToken { get; private set; }
+		AccessToken AccessToken { get; }
 	}
 }