Redesign notifier settings view.

ui/base/strings/ui_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. Specifically, these are UI strings that are used by app/ that
 need to be translated for each locale.-->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <!-- TODO add each of your output files.  Modify the three below, and add
@@ skipping 422 matching lines @@
       </message>
       <message name="IDS_MESSAGE_CENTER_SITE_DISABLE" desc="The menu entry for disabling notification from a site.">
         Disable notifications from <ph name="site">$1<ex>mail.google.com</ex></ph>
       </message>
       <message name="IDS_MESSAGE_CENTER_FOOTER_TITLE" desc="The label in the footer of the message center">
         Notifications
       </message>
       <message name="IDS_MESSAGE_CENTER_SETTINGS_BUTTON_LABEL" desc="The button label for visiting the appropriate settings page in the footer of the message center.">
         Settings
       </message>
+      <message name="IDS_MESSAGE_CENTER_SETTINGS_DIALOG_DESCRIPTION" desc="The label to describe the settings dialog.">
+        Set notification permissions for apps and extensions
+      </message>
       <message name="IDS_MESSAGE_CENTER_SETTINGS" desc="The menu entry or button for visiting the appropriate settings page.">
         Settings...
       </message>
       <message name="IDS_MESSAGE_CENTER_CLEAR_ALL" desc="The button for clearing all notifications.">
         Clear All
       </message>
       <message name="IDS_MESSAGE_CENTER_NO_MESSAGES" desc="The message displayed in the message center when there are no notifications.">
         You have no notifications. Relax!
       </message>
       <message name="IDS_MESSAGE_CENTER_QUIET_MODE" desc="The button label for quiet mode.">
         Quiet mode
       </message>
       <message name="IDS_MESSAGE_CENTER_QUIET_MODE_1HOUR" desc="The button label to enter quiet mode in one hour.">
         Quiet mode for one hour
       </message>
       <message name="IDS_MESSAGE_CENTER_QUIET_MODE_1DAY" desc="The button label to enter quiet mode in one day.">
         Quiet mode for one day
       </message>
       <message name="IDS_MESSAGE_CENTER_TOOLTIP" desc="Tooltip for notification tray icon without unread notifications">
         <ph name="product">$1<ex>Chrome</ex></ph> - Notifications
       </message>
       <message name="IDS_MESSAGE_CENTER_TOOLTIP_UNREAD" desc="Tooltip for notification tray icon with unread notifications">
         <ph name="product">$1<ex>Chrome</ex></ph> - Notifications (<ph name="QUANTITY">$2<ex>3</ex></ph> unread)
       </message>
     </messages>
   </release>
 </grit>