Only acquire IEditorOptionsFactoryService once for a contained document

Closes https://devdiv.visualstudio.com/DevDiv/_workitems/edit/1124280

src/VisualStudio/Core/Def/Implementation/Venus/ContainedDocument.cs

@@ -78,6 +78,7 @@ public static ContainedDocument TryGetContainedDocument(DocumentId id)
         private readonly IComponentModel _componentModel;
         private readonly Workspace _workspace;
         private readonly ITextDifferencingSelectorService _differenceSelectorService;
+        private readonly IEditorOptionsFactoryService _editorOptionsFactoryService;
         private readonly HostType _hostType;
         private readonly ReiteratedVersionSnapshotTracker _snapshotTracker;
         private readonly AbstractFormattingRule _vbHelperFormattingRule;
@@ -113,6 +114,7 @@ public static ContainedDocument TryGetContainedDocument(DocumentId id)
             BufferCoordinator = bufferCoordinator;
 
             _differenceSelectorService = componentModel.GetService<ITextDifferencingSelectorService>();
+            _editorOptionsFactoryService = _componentModel.GetService<IEditorOptionsFactoryService>();
             _snapshotTracker = new ReiteratedVersionSnapshotTracker(SubjectBuffer);
             _vbHelperFormattingRule = vbHelperFormattingRule;
 
@@ -870,8 +872,7 @@ private void GetVisibleAndTextSpan(SourceText text, List<TextSpan> spans, int sp
         private int GetBaseIndentation(SyntaxNode root, SourceText text, TextSpan span)
         {
             // Is this right?  We should probably get this from the IVsContainedLanguageHost instead.
-            var editorOptionsFactory = _componentModel.GetService<IEditorOptionsFactoryService>();
-            var editorOptions = editorOptionsFactory.GetOptions(DataBuffer);
+            var editorOptions = _editorOptionsFactoryService.GetOptions(DataBuffer);
 
             var additionalIndentation = GetAdditionalIndentation(root, text, span);