Show offline interstitial page when offline and reload when reconnected to network.

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 6273 matching lines @@
       </message>
       <message name="IDS_NEW_TAB_APP_UNINSTALL"
                desc="Text for the button that allows uninstalling an app.">
         Uninstall
       </message>
       <message name="IDS_NEW_TAB_APP_OPTIONS"
                desc="Text for the button that takes the user to the options of an app.">
         Options
       </message>
 
+      <!-- Offline page  -->
+      <if expr="pp_ifdef('chromeos')">
+        <message name="IDS_OFFLINE_LOAD_HEADLINE" desc="Offline Page HTML headline">
+          Network is not available.
+        </message>
+        <message name="IDS_OFFLINE_LOAD_DESCRIPTION" desc="Offline Page HTML description">
+          Page will be loaded when network becomes available. Press 'Load Now' if you want to load now.
+        </message>
+        <message name="IDS_OFFLINE_LOAD_BUTTON">
+          Load Now
+        </message>
+        <message name="IDS_OFFLINE_BACK_BUTTON">
+          Cancel
+        </message>
+      </if>
+
       <!-- SafeBrowsing -->
       <message name="IDS_SAFE_BROWSING_MALWARE_TITLE" desc="SafeBrowsing Malware HTML title">
         Malware Detected!
       </message>
       <message name="IDS_SAFE_BROWSING_MALWARE_HEADLINE" desc="SafeBrowsing Malware HTML headline">
         Warning: Visiting this site may harm your computer!
       </message>
       <message name="IDS_SAFE_BROWSING_MALWARE_DESCRIPTION1" desc="SafeBrowsing Malware HTML description, first line">
         The website at <ph name="HOST_NAME">&lt;strong&gt;$1<ex>www.malware.com</ex>&lt;/strong&gt;</ph> appears to host malware – software that can hurt your computer or otherwise operate without your consent.  Just visiting a site that hosts malware can infect your computer.
       </message>
@@ skipping 2425 matching lines @@
 
     </messages>
 
     <structures fallback_to_english="true">
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
 
   </release>
 </grit>