Add page info strings for offline pages.

ios/chrome/app/strings/ios_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definition of resources that will be translated for each
 locale.  The strings in this file are specific to iOS.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       output_all_resource_defines="false" source_lang_id="en" enc_check="möl">
   <outputs>
@@ skipping 885 matching lines @@
       </message>
       <message name="IDS_IOS_OPTIONS_SEARCH_URL_SUGGESTIONS" desc="Title for the option to turn on/off search and URL suggestions. [Length: 18em] [iOS only]">
         Show Suggestions
       </message>
       <message name="IDS_IOS_OPTIONS_SEND_USAGE_DATA" desc="Title for opening the setting for if/when to send usage data and crash reports. [Length: 20em] [iOS only]">
         Send Usage Data
       </message>
       <message name="IDS_IOS_OPTIONS_WEB_SERVICES_LABEL" desc="Title for group of web services items in Privacy settings table, including Show Suggestions, Preload Webpages, and Send Usage Data. [Length: 10em] [iOS only]">
         Web Services
       </message>
+      <message name="IDS_IOS_PAGE_INFO_OFFLINE_PAGE" desc="Message to display in the page info bubble when the page you are on is an offline page.">
+        The page has been saved locally to your Reading List.
+      </message>
+      <message name="IDS_IOS_PAGE_INFO_OFFLINE_TITLE" desc="Title of the message to display in the page info bubble when the page you are on is an offline page.">
+        Viewing in Offline Mode
+      </message>
+      <message name="IDS_IOS_PAGE_INFO_RELOAD" desc="Button title in the page info bubble that allows to reload the current page.">
+        Reload
+      </message>
       <message name="IDS_IOS_PAGE_INFO_SECURITY_BUTTON_ACCESSIBILITY_LABEL" desc="The accessibility text for the page security info button">
         Page Security Info
       </message>
       <message name="IDS_IOS_PAGE_LOADED_ACCESSIBILITY_ANNOUNCEMENT" desc="The accessibility announcement when a page has loaded. [Length: unlimited] [iOS only]">
         Webpage loaded
       </message>
       <message name="IDS_IOS_PASSWORD_MANAGER_BLACKLIST_BUTTON" desc="Button text for the 'Save Password' infobar's 'Never remember for this site' option [Length: 10em]">
         Never
       </message>
       <message name="IDS_IOS_PASSWORD_MANAGER_SAVE_BUTTON" desc="Save button text for password manager [Length: 10em]">
@@ skipping 605 matching lines @@
       </message>
       <message name="IDS_IOS_VOICE_SEARCH_SETTING_TITLE" desc="The title for Voice Search setting [Length: 29em] [iOS only]">
         Voice Search
       </message>
       <message name="IDS_IOS_VOICE_SEARCH_SETTING_TTS" desc="The label for setting switch enabling text-to-speech response after voice search [Length: 29em] [iOS only]">
         Speak Answers Back
       </message>
     </messages>
   </release>
 </grit>