webContents: set zoom levels with HostZoomMap

lib/browser/api/web-contents.js

@@ -105,15 +105,10 @@ const webFrameMethods = [
   'insertText',
   'setLayoutZoomLevelLimits',
   'setVisualZoomLevelLimits',
-  'setZoomFactor',
-  'setZoomLevel',
   // TODO(kevinsawicki): Remove in 2.0, deprecate before then with warnings
   'setZoomLevelLimits'
 ]
-const webFrameMethodsWithResult = [
-  'getZoomFactor',
-  'getZoomLevel'
-]
+const webFrameMethodsWithResult = []
 
 const asyncWebFrameMethods = function (requestId, method, callback, ...args) {
   return new Promise((resolve, reject) => {