[Offline pages] Selecting pages for clean up

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- android_chrome_strings.grd contains strings for Chrome for Android.
 
 FAQ:
   - How do I add, change, or remove a string?
       Just update this file.
   - Translations will happen automatically??
       Yes, indeed. Just add your string before the branch point and
       make the description good.
@@ skipping 1856 matching lines @@
       </message>
       <message name="IDS_OFFLINE_PAGES_ALL_ITEMS" desc="Title button and text for showing the list of web pages that have been saved/bookmarked. [CHAR-LIMIT=32]">
         All saved pages
       </message>
       <message name="IDS_OFFLINE_PAGES_EDIT_ITEM" desc="The string prompting the user to edit the content of a saved page. [CHAR-LIMIT=32]">
         Edit saved page
       </message>
       <message name="IDS_OFFLINE_PAGES_FREE_UP_SPACE_TITLE" desc="Text on a button and title of the dialog offering to remove offline pages to free up storage space. [CHAR-LIMIT=32]">
         Free up space
       </message>
-      <message name="IDS_OFFLINE_PAGES_FREE_UP_SPACE_MESSAGE" desc="Text explaining how many pages are going to be removed and how much storage is going to be freed.">
-        Delete <ph name="PAGES_NUMBER">%1$d<ex>8</ex></ph> saved pages that are older than 1 month? This will clear <ph name="TOTAL_PAGE_SIZE">%2$s<ex>8.3 MB</ex></ph> of space.
+      <message name="IDS_OFFLINE_PAGES_FREE_UP_SPACE_MESSAGE" desc="Text explaining how many offline copies of saved pages are going to be removed and how much storage is going to be freed.">
+        Delete <ph name="PAGES_NUMBER">%1$d<ex>8</ex></ph> offline copies not used in the past month? This will clear <ph name="TOTAL_PAGE_SIZE">%2$s<ex>8.3 MB</ex></ph> of space.
       </message>
       <message name="IDS_OFFLINE_PAGES_FOLDER_EMPTY" desc="Text explaining that the currently selected saved pages folder is empty.">
         No saved pages here
       </message>
       <message name="IDS_OFFLINE_PAGES_NTP_BUTTON_NAME" desc="Text for saved pages button on the new tab page [CHAR-LIMIT=20]">
         Saved pages
       </message>
       <message name="IDS_OFFLINE_PAGES_OPEN_STORAGE_SETTINGS_DIALOG_TEXT" desc="Text of the dialog asking if the user wants to open storage settings to remove files to make space.">
         Your device storage is full. Please remove other media to make space.
       </message>
@@ skipping 395 matching lines @@
 
       <!-- Physical Web strings -->
       <message name="IDS_PHYSICAL_WEB_NOTIFICATION_TITLE" desc="Description of quantity of discovered URLs nearby.">
         {NUM_URLS, plural,
          =1 {1 URL nearby}
          other {# URLs nearby}}
       </message>
     </messages>
   </release>
 </grit>