[Sync] Add sessions sync to about:flags

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.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
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         When pre-login is turned on, connecting a profile to a Google Account will add the account's cookies
         to the profile's cookie jar, so that retyping the username and password in the browser is not necessary.
         Pre-login is always disabled if the profile is not connected to a Google Account.
       </message>
       <message name="IDS_FLAGS_SHOW_AUTOFILL_TYPE_PREDICTIONS_NAME" desc="Title for the flag to show Autofill field type predictions for all forms">
         Show Autofill predictions
       </message>
       <message name="IDS_FLAGS_SHOW_AUTOFILL_TYPE_PREDICTIONS_DESCRIPTION" desc="Description for the flag to show Autofill field type predictions for all forms">
         Annotates web forms with Autofill field type predictions as placeholder text.
       </message>
+      <message name="IDS_FLAGS_SYNC_SESSIONS_NAME" desc="Title for the flag to enable syncing the Sessions datatype">
+        Enable syncing sessions
+      </message>
+      <message name="IDS_FLAGS_SYNC_SESSIONS_DESCRIPTION" desc="Description for the flag to enable syncing the Sessions datatype">
+        Enable sessions in the sync options. This allows syncing your sessions to other clients.
+      </message>
       <message name="IDS_FLAGS_SYNC_TYPED_URLS_NAME" desc="Title for the flag to enable syncing the TypedUrl datatype">
         Enable syncing typed URLs
       </message>
       <message name="IDS_FLAGS_SYNC_TYPED_URLS_DESCRIPTION" desc="Description for the flag to enable syncing the TypedURL datatype">
         Enable typed URLs in the sync options. This allows syncing your typed URL history to other clients to assist in omnibox auto-completion.
       </message>
       <message name="IDS_FLAGS_PRERENDER_FROM_OMNIBOX_NAME" desc="Title for the flag to prerender from the omnibox">
         Prerender from omnibox
       </message>
       <message name="IDS_FLAGS_PRERENDER_FROM_OMNIBOX_DESCRIPTION" desc="Description for the flag to prerender from the omnibox">
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     </includes>
     <structures fallback_to_english="true">
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
 
   </release>
 </grit>