Proxy settings automation hooks and related proxy settings fixes.

chrome/browser/resources/options/pref_ui.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
 
   var Preferences = options.Preferences;
 
   /**
    * Helper function update element's state from pref change event.
@@ skipping 463 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) {
-            Preferences.setStringPref(self.pref, self.value, self.metric);
+            switch(self.dataType) {
+              case 'number':
+                Preferences.setIntegerPref(self.pref, parseInt(self.value, 10),
+                                           self.metric);
+                break;
+              case 'double':
+                Preferences.setDoublePref(self.pref, parseFloat(self.value),
+                                          self.metric);
+                break;
+              default:
+                Preferences.setStringPref(self.pref, self.value, self.metric);
+                break;
+            }
           });
 
       window.addEventListener('unload',
           function() {
             if (document.activeElement == self)
               self.blur();
           });
     }
   };
 
   /**
    * The preference name.
    * @type {string}
    */
   cr.defineProperty(PrefTextField, 'pref', cr.PropertyKind.ATTR);
 
   /**
    * The user metric string.
    * @type {string}
    */
   cr.defineProperty(PrefTextField, 'metric', cr.PropertyKind.ATTR);
 
+  /**
+   * The data type for the preference options.
+   * @type {string}
+   */
+  cr.defineProperty(PrefTextField, 'dataType', cr.PropertyKind.ATTR);
+
   // Export
   return {
     PrefCheckbox: PrefCheckbox,
     PrefNumber: PrefNumber,
     PrefNumeric: PrefNumeric,
     PrefRadio: PrefRadio,
     PrefRange: PrefRange,
     PrefSelect: PrefSelect,
     PrefTextField: PrefTextField
   };
 
 });