Report deprecated BrowserWindow options

lib/browser/api/browser-window.js

@@ -8,7 +8,6 @@ const BrowserWindow = process.atomBinding('window').BrowserWindow;
 BrowserWindow.prototype.__proto__ = EventEmitter.prototype;
 
 BrowserWindow.prototype._init = function() {
-
   // avoid recursive require.
   var app, menu;
   app = require('electron').app;
@@ -240,4 +239,56 @@ BrowserWindow.prototype.getPageTitle = deprecate('getPageTitle', 'webContents.ge
   return (ref1 = this.webContents) != null ? ref1.getTitle() : void 0;
 });
 
+const isDeprecatedKey = function(key) {
+  return key.indexOf('-') >= 0;
+};
+
+// Map deprecated key with hyphens to camel case key
+const getNonDeprecatedKey = function(deprecatedKey) {
+  return deprecatedKey.replace(/-./g, function(match) {
+    return match[1].toUpperCase();
+  });
+};
+
+// TODO Remove for 1.0
+const checkForDeprecatedOptions = function(options) {
+  if (!options) return '';
+
+  let keysToCheck = Object.keys(options);
+  if (options.webPreferences) {
+    keysToCheck = keysToCheck.concat(Object.keys(options.webPreferences));
+  }
+
+  // Check options for keys with hypens in them
+  let deprecatedKey = keysToCheck.filter(isDeprecatedKey)[0];
+  if (deprecatedKey) {
+    try {
+      deprecate.warn(deprecatedKey, getNonDeprecatedKey(deprecatedKey));
+    } catch (error) {
+      // Return error message so it can be rethrown via C++
+      return error.message;
+    }
+  }
+
+  let webPreferenceOption;
+  if (options.hasOwnProperty('nodeIntegration')) {
+    webPreferenceOption = 'nodeIntegration';
+  } else if (options.hasOwnProperty('preload')) {
+    webPreferenceOption = 'preload';
+  } else if (options.hasOwnProperty('zoomFactor')) {
+    webPreferenceOption = 'zoomFactor';
+  }
+  if (webPreferenceOption) {
+    try {
+      deprecate.log(`Setting ${webPreferenceOption} on options is deprecated. Set it on options.webPreferences instead.`);
+    } catch (error) {
+      // Return error message so it can be rethrown via C++
+      return error.message;
+    }
+  }
+
+  return '';
+};
+BrowserWindow._setDeprecatedOptionsCheck(checkForDeprecatedOptions);
+
 module.exports = BrowserWindow;