💚 Fix some TextEditorComponent specs

src/text-editor-component.coffee

@@ -388,6 +388,12 @@ class TextEditorComponent
   getScrollWidth: ->
     @presenter.getScrollWidth()
 
+  getVerticalScrollbarWidth: ->
+    @presenter.getVerticalScrollbarWidth()
+
+  getHorizontalScrollbarHeight: ->
+    @presenter.getHorizontalScrollbarHeight()
+
   onMouseDown: (event) =>
     unless event.button is 0 or (event.button is 1 and process.platform is 'linux')
       # Only handle mouse down events for left mouse button on all platforms

src/text-editor-element.coffee

@@ -258,6 +258,12 @@ class TextEditorElement extends HTMLElement
   getScrollWidth: ->
     @component.getScrollWidth()
 
+  getVerticalScrollbarWidth: ->
+    @component.getVerticalScrollbarWidth()
+
+  getHorizontalScrollbarHeight: ->
+    @component.getHorizontalScrollbarHeight()
+
 stopEventPropagation = (commandListeners) ->
   newCommandListeners = {}
   for commandName, commandListener of commandListeners

src/text-editor-presenter.coffee

@@ -1486,6 +1486,12 @@ class TextEditorPresenter
   getHorizontalScrollMarginInPixels: ->
     @model.getHorizontalScrollMargin() * @baseCharacterWidth
 
+  getVerticalScrollbarWidth: ->
+    @verticalScrollbarWidth
+
+  getHorizontalScrollbarHeight: ->
+    @horizontalScrollbarHeight
+
   commitPendingLogicalScrollPosition: ->
     {screenRange, options} = @pendingScrollLogicalPosition