Remove partial magnifier from settings page.

chrome/browser/resources/options/browser_options.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.
 
 cr.define('options', function() {
   var OptionsPage = options.OptionsPage;
   var ArrayDataModel = cr.ui.ArrayDataModel;
   var RepeatingButton = cr.ui.RepeatingButton;
 
   //
@@ skipping 387 matching lines @@
         $('accessibility-spoken-feedback-check').onchange = function(event) {
           chrome.send('spokenFeedbackChange',
                       [$('accessibility-spoken-feedback-check').checked]);
         };
 
         $('accessibility-high-contrast-check').onchange = function(event) {
           chrome.send('highContrastChange',
                       [$('accessibility-high-contrast-check').checked]);
         };
 
-        $('accessibility-screen-magnifier-type').onchange = function(event) {
-          chrome.send('screenMagnifierChange',
-                      [$('accessibility-screen-magnifier-type').value]);
+        $('accessibility-screen-magnifier-check').onchange = function(event) {
+          var checked = $('accessibility-screen-magnifier-check').checked;
+          chrome.send('screenMagnifierChange', [checked ? 'full' : '']);
         };
       }
 
       // Display management section (CrOS only).
       if (cr.isChromeOS) {
         $('display-options').onclick = function(event) {
           OptionsPage.navigateToPage('display');
           chrome.send('coreOptionsUserMetricsAction',
                       ['Options_Display']);
         };
@@ skipping 758 matching lines @@
 
     /**
      * Set the initial state of the high contrast checkbox.
      * @private
      */
     setHighContrastCheckboxState_: function(checked) {
       $('accessibility-high-contrast-check').checked = checked;
     },
 
     /**
      * Set the initial state of the screen magnifier dropdown.

[Dan Beam, 2012/12/12 21:24:11]

* @param {string} type Explain the type here.

[yoshiki, 2012/12/13 02:40:26]

Done.

      * @private
      */
     setMagnifierTypeState_: function(type) {
-      $('accessibility-screen-magnifier-type').value = type;
+      $('accessibility-screen-magnifier-check').checked = (type != '');
     },
 
     /**
      * Set the initial state of the virtual keyboard checkbox.
      * @private
      */
     setVirtualKeyboardCheckboxState_: function(checked) {
       // TODO(zork): Update UI
     },
 
@@ skipping 164 matching lines @@
     BrowserOptions.getLoggedInUsername = function() {
       return BrowserOptions.getInstance().username_;
     };
   }
 
   // Export
   return {
     BrowserOptions: BrowserOptions
   };
 });