Add menu button to menu

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit current_release="1" latest_public_release="0">
   <outputs>
     <output filename="values-am/android_chrome_strings.xml" lang="am" type="android" />
     <output filename="values-ar/android_chrome_strings.xml" lang="ar" type="android" />
     <output filename="values-bg/android_chrome_strings.xml" lang="bg" type="android" />
     <output filename="values-ca/android_chrome_strings.xml" lang="ca" type="android" />
     <output filename="values-cs/android_chrome_strings.xml" lang="cs" type="android" />
     <output filename="values-da/android_chrome_strings.xml" lang="da" type="android" />
     <output filename="values-de/android_chrome_strings.xml" lang="de" type="android" />
@@ skipping 220 matching lines @@
       </message>
       <message name="IDS_TRANSLATE_BUTTON_DONE" desc="Text to display on the translate infobar button to apply new languages. [CHAR-LIMIT=24]">
         Done
       </message>
       <message name="IDS_TRANSLATE_NEVER_TRANSLATE_SITE" desc="Text to display on the never translate site (like www.google.com) button. [CHAR-LIMIT=64]">
         Never translate this site
       </message>
       <message name="IDS_TRANSLATE_NEVER_TRANSLATE_LANGUAGE" meaning="Android" desc="Text to display on the never translate language button. [CHAR-LIMIT=64]">
         Never translate <ph name="LANGUAGE">%1$s<ex>French</ex></ph>
       </message>
+      <message name="IDS_MENU_DISMISS_BTN" desc="Content description for the settings menu button when the menu is open.">
+        Dismiss the menu
+      </message>
       <message name="IDS_MENU_PRINT" desc="Menu item for printing the current page. [CHAR-LIMIT=27]">
         Print…
       </message>
       <message name="IDS_MENU_SHARE_PAGE" desc="Menu item for sharing the current page. [CHAR-LIMIT=27]">
         Share…
       </message>
       <message name="IDS_SHARE_LINK_CHOOSER_TITLE" desc="title for the share dialog when sharing the current address [CHAR-LIMIT=27]">
         Share via
       </message>
       <message name="IDS_ACCESSIBILITY_MENU_SHARE_VIA" desc="Content description share current page via the most recently used application menu item">
@@ skipping 116 matching lines @@
       <message name="IDS_DATA_REDUCTION_INFOBAR_TEXT" desc="Text to be displayed in the data reduction proxy infobar" translateable="false">
         You are part of a data reduction proxy field trial.
       </message>
       <message name="IDS_DATA_REDUCTION_INFOBAR_LINK_TEXT" desc="Text to be displayed in the data reduction proxy infobar link" translateable="false">
         Settings
       </message>
 
     </messages>
   </release>
 </grit>