First round of dead file removal

obsolete/Microsoft.VisualStudio.Project/VSShellUtilities.cs

-/// Copyright (c) Microsoft Corporation.  All rights reserved.
-
-using System;
-using System.Diagnostics;
-using Microsoft.VisualStudio;
-using Microsoft.VisualStudio.Shell.Interop;
-
-namespace Microsoft.VisualStudio.Project
-{
-        /// <summary>
-        ///This class provides some useful static shell based methods. 
-        /// </summary>
-        [CLSCompliant(false)]
-        public static class UIHierarchyUtilities
-        {
-                /// <summary>
-                /// Get reference to IVsUIHierarchyWindow interface from guid persistence slot.
-                /// </summary>
-                /// <param name="serviceProvider">The service provider.</param>
-                /// <param name="persistenceSlot">Unique identifier for a tool window created using IVsUIShell::CreateToolWindow. 
-                /// The caller of this method can use predefined identifiers that map to tool windows if those tool windows 
-                /// are known to the caller. </param>
-                /// <returns>A reference to an IVsUIHierarchyWindow interface.</returns>
-                public static IVsUIHierarchyWindow GetUIHierarchyWindow(IServiceProvider serviceProvider, Guid persistenceSlot)
-                {
-                        if(serviceProvider == null)
-                        {
-                                throw new ArgumentNullException("serviceProvider");
-                        }
-
-                        IVsUIShell shell = serviceProvider.GetService(typeof(SVsUIShell)) as IVsUIShell;
-
-                        Debug.Assert(shell != null, "Could not get the ui shell from the project");
-                        if(shell == null)
-                        {
-                                throw new InvalidOperationException();
-                        }
-
-                        object pvar = null;
-                        IVsWindowFrame frame = null;
-                        IVsUIHierarchyWindow uiHierarchyWindow = null;
-
-                        try
-                        {
-                                ErrorHandler.ThrowOnFailure(shell.FindToolWindow(0, ref persistenceSlot, out frame));
-                                ErrorHandler.ThrowOnFailure(frame.GetProperty((int)__VSFPROPID.VSFPROPID_DocView, out pvar));
-                        }
-                        finally
-                        {
-                                if(pvar != null)
-                                {
-                                        uiHierarchyWindow = (IVsUIHierarchyWindow)pvar;
-                                }
-                        }
-
-                        return uiHierarchyWindow;
-                }
-        }
-}