Correct references to obsolete WebKit pref names in options code

The WebKit prefs were renamed in issue 123812. This CL fixes three
references to WebKit prefs missed in that rename.

BUG=139787


Review URL: https://chromiumcodereview.appspot.com/10826081

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149230 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/options2/browser_options.js

@@ -364,7 +364,7 @@ cr.define('options', function() {
       $('defaultFontSize').onchange = function(event) {
         var value = event.target.options[event.target.selectedIndex].value;
         Preferences.setIntegerPref(
-             'webkit.webprefs.global.default_fixed_font_size',
+             'webkit.webprefs.default_fixed_font_size',
              value - OptionsPage.SIZE_DIFFERENCE_FIXED_STANDARD, '');
         chrome.send('defaultFontSizeAction', [String(value)]);
       };

chrome/browser/resources/options2/font_settings.js

@@ -108,7 +108,7 @@ cr.define('options', function() {
      */
     standardFontSizeChanged_: function(el, value) {
       Preferences.setIntegerPref(
-        'webkit.webprefs.global.default_fixed_font_size',
+        'webkit.webprefs.default_fixed_font_size',
         value - OptionsPage.SIZE_DIFFERENCE_FIXED_STANDARD, '');
     },
 
@@ -134,7 +134,7 @@ cr.define('options', function() {
      */
     minimumFontSizeChanged_: function(el, value) {
       Preferences.setIntegerPref(
-        'webkit.webprefs.global.minimum_logical_font_size', value, '');
+        'webkit.webprefs.minimum_logical_font_size', value, '');
     },
 
     /**