typo fix

TBR=dbeam@chromium.org

Review URL: https://codereview.chromium.org/444373003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287991 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/options/options_settings_app.js

@@ -9,7 +9,7 @@
   OptionsPage.setIsSettingsApp(true);
 
   // Override the offset in the options page.
-  PageManager.horizentalOffset = 38;
+  PageManager.horizontalOffset = 38;
 
   document.addEventListener('DOMContentLoaded', function() {
     // Hide everything by default.