Fix JavaScript errors in options2

chrome/browser/resources/options2/pref_ui.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // TODO(jhawkins): Add dialog-pref support to all preference controls.
 
 cr.define('options', function() {
 
   var Preferences = options.Preferences;
 
@@ skipping 13 matching lines @@
     if (el.disabled && (Object.keys(el.disabledReasons).length == 0)) {
       // The element has been previously disabled without a reason, so we add
       // one to keep it disabled.
       el.disabledReasons['other'] = true;
     }
     if (!el.disabled) {
       // If the element is not disabled, there should be no reason, except for
       // 'other'.
       delete el.disabledReasons['other'];
       if (Object.keys(el.disabledReasons).length > 0)
-        console.error("Element is not disabled but should be");
+        console.error('Element is not disabled but should be');
     }
     if (disabled) {
       el.disabledReasons[reason] = true;
     } else {
       delete el.disabledReasons[reason];
     }
     el.disabled = Object.keys(el.disabledReasons).length > 0;
   }
 
   /**
@@ skipping 51 matching lines @@
             updateElementState_(self, event);
           });
 
       // Listen to user events.
       this.addEventListener(
           'change',
           function(e) {
             if (self.customChangeHandler(e))
               return;
             var value = self.inverted_pref ? !self.checked : self.checked;
-            switch(self.valueType) {
+            switch (self.valueType) {
               case 'number':
                 Preferences.setIntegerPref(self.pref,
                     Number(value), self.metric);
                 break;
               case 'boolean':
                 Preferences.setBooleanPref(self.pref,
                     value, self.metric);
                 break;
             }
           });
@@ skipping 419 matching lines @@
           });
 
       // Listen to user events.
       this.addEventListener('change',
           function(e) {
             if (!self.dataType) {
               console.error('undefined data type for <select> pref');
               return;
             }
 
-            switch(self.dataType) {
+            switch (self.dataType) {
               case 'number':
                 Preferences.setIntegerPref(self.pref,
                     self.options[self.selectedIndex].value, self.metric);
                 break;
               case 'double':
                 Preferences.setDoublePref(self.pref,
                     self.options[self.selectedIndex].value, self.metric);
                 break;
               case 'boolean':
                 var option = self.options[self.selectedIndex];
@@ skipping 65 matching lines @@
           function(event) {
             self.value = event.value && event.value['value'] != undefined ?
                 event.value['value'] : event.value;
 
             updateElementState_(self, event);
           });
 
       // Listen to user events.
       this.addEventListener('change',
           function(e) {
-            switch(self.dataType) {
+            switch (self.dataType) {
               case 'number':
                 Preferences.setIntegerPref(self.pref, self.value, self.metric);
                 break;
               case 'double':
                 Preferences.setDoublePref(self.pref, self.value, self.metric);
                 break;
               case 'url':
                 Preferences.setURLPref(self.pref, self.value, self.metric);
                 break;
               default:
@@ skipping 102 matching lines @@
     PrefNumber: PrefNumber,
     PrefNumeric: PrefNumeric,
     PrefRadio: PrefRadio,
     PrefRange: PrefRange,
     PrefSelect: PrefSelect,
     PrefTextField: PrefTextField,
     PrefButton: PrefButton
   };
 
 });