MD Settings: Input method: add show-in-shelf toggle

chrome/app/settings_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Settings-specific strings (included from generated_resources.grd). -->
 <grit-part>
   <!-- Main Page -->
   <if expr="chromeos">
     <message name="IDS_SETTINGS_SECONDARY_USER_BANNER" desc="Banner displayed in settings page when the user is secondary in a multi-profile session.">
       Some settings belonging to <ph name="PRIMARY_EMAIL">$1<ex>john@google.com</ex></ph> are being shared with you. These settings only affect your account when using multiple sign-in.
     </message>
   </if>
 
@@ skipping 1486 matching lines @@
     </message>
     <message name="IDS_SETTINGS_LANGUAGES_INPUT_METHODS_EXPAND_ACCESSIBILITY_LABEL" desc="Label for the button that toggles showing the input options (keyboard and keyboard layouts). Only visible by screen reader software.">
       Show input options
     </message>
     <message name="IDS_SETTINGS_LANGUAGES_INPUT_METHODS_MANAGE" desc="Button under the list of input methods which opens a sub-page that lets the user enable or disable keyboard layouts and input method editors.">
       Manage input methods
     </message>
     <message name="IDS_SETTINGS_LANGUAGES_MANAGE_INPUT_METHODS_TITLE" desc="Name of the settings sub-page which allows enabling and disabling input methods.">
       Manage input methods
     </message>
+    <message name="IDS_SETTINGS_LANGUAGES_SHOW_IME_MENU" desc="The label for he toggle button controlling showing the IME menu in the shelf.">
+      Show input options in the shelf
+    </message>
   </if>
   <message name="IDS_SETTINGS_LANGUAGES_MANAGE_LANGUAGES_TITLE" desc="Name of the settings dialog which allows enabling additional languages.">
     Add languages
   </message>
   <message name="IDS_SETTINGS_LANGUAGES_ALL_LANGUAGES" desc="Header for the list of all supported languages, which the user can use to enable languages, on the Manage Languages page.">
     All languages
   </message>
   <message name="IDS_SETTINGS_LANGUAGES_ENABLED_LANGUAGES" desc="Header for the list of enabled languages, which the user can use to disable languages, on the Manage Languages page.">
     Enabled languages
   </message>
@@ skipping 1387 matching lines @@
       System
     </message>
     <message name="IDS_SETTINGS_SYSTEM_HARDWARE_ACCELERATION_LABEL" desc="Label for the checkbox that forces Chrome to render via hardware acceleration (GPU) when available.">
       Use hardware acceleration when available
     </message>
     <message name="IDS_SETTINGS_SYSTEM_PROXY_SETTINGS_BUTTON" desc="Text for the button that changes a user's network proxy settings.">
       Change proxy settings
     </message>
   </if>
 </grit-part>