First round of dead file removal

obsolete/Microsoft.VisualStudio.Project/SuspendFileChanges.cs

Index: obsolete/Microsoft.VisualStudio.Project/SuspendFileChanges.cs
diff --git a/obsolete/Microsoft.VisualStudio.Project/SuspendFileChanges.cs b/obsolete/Microsoft.VisualStudio.Project/SuspendFileChanges.cs
deleted file mode 100644
index 610c0a25dd3b7caff8bcb7147c5965118a66222f..0000000000000000000000000000000000000000
--- a/obsolete/Microsoft.VisualStudio.Project/SuspendFileChanges.cs
+++ /dev/null
@@ -1,115 +0,0 @@
-/// Copyright (c) Microsoft Corporation.  All rights reserved.
-
-using System;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-using Microsoft.VisualStudio;
-using Microsoft.VisualStudio.Shell.Interop;
-using IServiceProvider = System.IServiceProvider;
-using ShellConstants = Microsoft.VisualStudio.Shell.Interop.Constants;
-
-namespace Microsoft.VisualStudio.Project
-{
-	/// <summary>
-	/// helper to make the editor ignore external changes
-	/// </summary>
-	internal class SuspendFileChanges
-	{
-		private string documentFileName;
-
-		private bool isSuspending;
-
-		private IServiceProvider site;
-
-		private IVsDocDataFileChangeControl fileChangeControl;
-
-		public SuspendFileChanges(IServiceProvider site, string document)
-		{
-			this.site = site;
-			this.documentFileName = document;
-		}
-
-
-		[System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Performance", "CA1800:DoNotCastUnnecessarily")]
-		public void Suspend()
-		{
-			if(this.isSuspending)
-				return;
-
-			IntPtr docData = IntPtr.Zero;
-			try
-			{
-				IVsRunningDocumentTable rdt = this.site.GetService(typeof(SVsRunningDocumentTable)) as IVsRunningDocumentTable;
-
-				IVsHierarchy hierarchy;
-				uint itemId;
-				uint docCookie;
-				IVsFileChangeEx fileChange;
-
-
-				if(rdt == null) return;
-
-				ErrorHandler.ThrowOnFailure(rdt.FindAndLockDocument((uint)_VSRDTFLAGS.RDT_NoLock, this.documentFileName, out hierarchy, out itemId, out docData, out docCookie));
-
-				if((docCookie == (uint)ShellConstants.VSDOCCOOKIE_NIL) || docData == IntPtr.Zero)
-					return;
-
-				fileChange = this.site.GetService(typeof(SVsFileChangeEx)) as IVsFileChangeEx;
-
-				if(fileChange != null)
-				{
-					this.isSuspending = true;
-					ErrorHandler.ThrowOnFailure(fileChange.IgnoreFile(0, this.documentFileName, 1));
-					if(docData != IntPtr.Zero)
-					{
-						IVsPersistDocData persistDocData = null;
-
-						// if interface is not supported, return null
-						object unknown = Marshal.GetObjectForIUnknown(docData);
-						if(unknown is IVsPersistDocData)
-						{
-							persistDocData = (IVsPersistDocData)unknown;
-							if(persistDocData is IVsDocDataFileChangeControl)
-							{
-								this.fileChangeControl = (IVsDocDataFileChangeControl)persistDocData;
-								if(this.fileChangeControl != null)
-								{
-									ErrorHandler.ThrowOnFailure(this.fileChangeControl.IgnoreFileChanges(1));
-								}
-							}
-						}
-					}
-				}
-			}
-			catch(InvalidCastException e)
-			{
-				Trace.WriteLine("Exception" + e.Message);
-			}
-			finally
-			{
-				if(docData != IntPtr.Zero)
-				{
-					Marshal.Release(docData);
-				}
-			}
-			return;
-		}
-
-		public void Resume()
-		{
-			if(!this.isSuspending)
-				return;
-			IVsFileChangeEx fileChange;
-			fileChange = this.site.GetService(typeof(SVsFileChangeEx)) as IVsFileChangeEx;
-			if(fileChange != null)
-			{
-				this.isSuspending = false;
-				ErrorHandler.ThrowOnFailure(fileChange.IgnoreFile(0, this.documentFileName, 0));
-				if(this.fileChangeControl != null)
-				{
-					ErrorHandler.ThrowOnFailure(this.fileChangeControl.IgnoreFileChanges(0));
-				}
-			}
-		}
-	}
-}