Added Sign out for Chromium OS.

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/generated_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 1014 matching lines @@
         <message name="IDS_HELP_PAGE" desc="In Title Case: The text label of the Help menu item">
           H&amp;elp
         </message>
         <message name="IDS_ABOUT" desc="In Title Case: The text label of the About Chrome menu item">
           About &amp;<ph name="PRODUCT_NAME">$1<ex>Google Chrome</ex></ph>
         </message>
         <message name="IDS_EXIT" desc="In Title Case: The text label of the Exit menu item">
           E&amp;xit
         </message>
       </if>
+      <if expr="pp_ifdef('chromeos')">
+        <message name="IDS_SIGN_OUT" desc="The text label of the Sign Out menu item">
+          Sign Out
+        </message>
+      </if>
 
       <!-- Keywords -->
       <message name="IDS_KEYWORD_SEARCH"
                desc="The description for a chrome keyword search match in the Omnibox dropdown">
         Search <ph name="SITE_NAME">$1<ex>www.google.com</ex></ph> for <ph name="SEARCH_TERMS">$2<ex>flowers</ex></ph>
       </message>
       <message name="IDS_EMPTY_KEYWORD_VALUE"
                 desc="Shown in the location bar drop down when the user enters a string that matches a chrome keyword, but they haven't entered any text following the chrome keyword">
         &lt;enter query&gt;
       </message>
@@ skipping 5848 matching lines @@
       <message name="IDS_NOTIFICATION_PANEL_TITLE" desc="Text for the title of the notification panel.">
         Notifications
       </message>
     </if>
      <message name="IDS_BOOKMARK_BAR_IMPORT_LINK" desc="text shown for importing ">
        Import bookmarks now...
      </message>
     </messages>
   </release>
 </grit>