Refactored the VS add-in

visual_studio/NativeClientVSAddIn/UnitTests/MockProcessSearcher.cs

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 namespace UnitTests
 {
-  using System;
   using System.Collections.Generic;
-  using System.Management;
 
   /// <summary>
   /// A fake process searcher that allows the list of 'processes' on the system to be faked.
   /// </summary>
   public class MockProcessSearcher : NativeClientVSAddIn.ProcessSearcher
   {
     /// <summary>
     /// Constructs the fake process searcher.
     /// </summary>
     public MockProcessSearcher()
     {
       this.ProcessList = new List<NativeClientVSAddIn.ProcessInfo>();
     }
 
     /// <summary>
     /// Gets or sets the fake list of processes this MockProcessSearcher knows about.
     /// </summary>
     public List<NativeClientVSAddIn.ProcessInfo> ProcessList { get; set; }
 
     /// <summary>
     /// This method substitutes the fake process list for the list of real system processes.
     /// </summary>
     /// <returns>Fake list of processes</returns>
     protected override List<NativeClientVSAddIn.ProcessInfo> GetSystemProcesses()
     {
       return this.ProcessList;
     }
   }
 }