Fix mock clients

Author: markcowl

src/ServiceManagement/Services/Commands.Test/Profile/ProfileClientHelper.cs

@@ -16,7 +16,10 @@
 using System;
 using System.Collections.Generic;
 using System.Net;
+using System.Net.Http;
 using System.Threading.Tasks;
+using Hyak.Common;
+using Microsoft.Azure.Subscriptions.Rdfe;
 
 namespace Microsoft.WindowsAzure.Commands.Test.Profile
 {
@@ -31,6 +34,16 @@ public IList<String> ReturnedSubscriptions
             set { this._subscriptions = value; }
         }
 
+        protected override SubscriptionClient WithHandler(ServiceClient<SubscriptionClient> newClient, DelegatingHandler handler)
+        {
+            return newClient as SubscriptionClient;
+        }
+
+        public override SubscriptionClient WithHandler(DelegatingHandler handler)
+        {
+            return this;
+        }
+
         public override Microsoft.Azure.Subscriptions.Rdfe.ISubscriptionOperations Subscriptions
         {
             get { return MockRdfeSubscriptionOperations.Create(this.ReturnedSubscriptions, this.Tenant); }
@@ -128,6 +141,11 @@ public override Azure.Subscriptions.Csm.ITenantOperations Tenants
                 return MockCsmTenantOperations.Create(this.ReturnedTenants);
             }
         }
+
+        public override Azure.Subscriptions.Csm.SubscriptionClient WithHandler(DelegatingHandler handler)
+        {
+            return this;
+        }
     }
 
     public class MockCsmTenantOperations : Microsoft.Azure.Subscriptions.Csm.ITenantOperations