Added strings for cancel confirm on mobile setup dialog.

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"
@@ skipping 4889 matching lines @@
         </message>
         <message name="IDS_MOBILE_COMPLETED_HEADER" desc="Message header when data service is completed">
           Activation complete
         </message>
         <message name="IDS_MOBILE_PLEASE_WAIT" desc="Message user the header displayed while mobile plan is being activated">
           (this might take a few minutes)
         </message>
         <message name="IDS_MOBILE_COMPLETED_TEXT" desc="Message when cellular data service activation or payment is completed">
           Your mobile data service is activated and ready to use
         </message>
+        <message name="IDS_MOBILE_CANCEL_ACTIVATION" desc="Message when user attempts to cancel cellular data service activation proces">
+          Are you sure you want to cancel mobile data service setup process?
+        </message>
       </if>
 
       <!-- chrome://flash strings -->
       <message name="IDS_FLASH_LOADING_MESSAGE" desc="Shown while loading until full list of modules is retrieved">
       Loading...
       </message>
       <message name="IDS_FLASH_TITLE_MESSAGE" desc="Shown while loading until full list of modules is retrieved">
       About Flash
       </message>
 
@@ skipping 9170 matching lines @@
     </messages>
     <structures fallback_to_english="true">
       <!-- Make sure these stay in sync with the structures in generated_resources.grd. -->
       <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>