Add accelerator ("f1") to display the help website.

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="generated_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 3035 matching lines @@
       </message>
       <message name="IDS_RIGHT_UP_KEY" desc="Up arrow key">
         Up Arrow
       </message>
       <message name="IDS_RIGHT_DOWN_KEY" desc="Down arrow key">
         Down Arrow
       </message>
       <message name="IDS_ENTER_KEY" desc="Enter key">
         Enter
       </message>
+      <message name="IDS_F1_KEY" desc="F1 key">
+        F1
+      </message>
 
       <!-- Strings used in local directory listings -->
       <message name="IDS_DIRECTORY_LISTING_HEADER" desc="When viewing a local directory, this is the title of the page.">
         Index of <ph name="LOCATION">LOCATION<ex>c:\Documents and Settings</ex></ph>
       </message>
       <message name="IDS_DIRECTORY_LISTING_PARENT" desc="When viewing a local directory, this is the text for a link to the parent directory.">
         [parent directory]
       </message>
       <message name="IDS_DIRECTORY_LISTING_NAME" desc="When viewing a local directory, this is the text for the column above the filenames.">
         Name
@@ skipping 176 matching lines @@
       <message name="IDS_BOOKMARK_MANAGER_IMPORT_MENU" desc="Title of the import menu item in the bookmark manager.">
         Import bookmarks...
       </message>
       <message name="IDS_BOOKMARK_MANAGER_EXPORT_MENU" desc="Title of the export menu item in the bookmark manager.">
         Export bookmarks...
       </message>
 
     </messages>
   </release>
 </grit>