Update description for NATIVE_FILE_SYSTEM_WRITE_GUARD.

Update the description string shown for `File editing` on
chrome://settings/contents.

Bug: 992175
Change-Id: I88d6283d8b481989f2af8cd24e20fc560f1b9c23
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1760962Reviewed-by: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Marijn Kruisselbrink <mek@chromium.org>
Reviewed-by: Dan Beam <dbeam@chromium.org>
Auto-Submit: Balazs Engedy <engedy@chromium.org>
Commit-Queue: Dan Beam <dbeam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#688596}

chrome/app/settings_strings.grdp

@@ -3324,13 +3324,13 @@
     File editing
   </message>
   <message name="IDS_SETTINGS_SITE_SETTINGS_NATIVE_FILE_SYSTEM_WRITE_ASK" desc="The ask label for native file system write permission in site settings.">
-    Ask when a site wants to save your changes directly to files or folders on your device
+    Ask when a site wants to edit files or folders on your device
   </message>
   <message name="IDS_SETTINGS_SITE_SETTINGS_NATIVE_FILE_SYSTEM_WRITE_ASK_RECOMMENDED" desc="The ask label for native file system write permission in site settings (with the 'recommended' suffix).">
-    Ask when a site wants to save your changes directly to files or folders on your device (recommended)
+    Ask when a site wants to edit files or folders on your device (recommended)
   </message>
   <message name="IDS_SETTINGS_SITE_SETTINGS_NATIVE_FILE_SYSTEM_WRITE_BLOCK" desc="The block label for native file system write permission in site settings.">
-    Do not allow any sites to save your changes directly to files or folders on your device
+    Do not allow any sites to edit files or folders on your device
   </message>
   <message name="IDS_SETTINGS_SITE_SETTINGS_REMOVE_ZOOM_LEVEL" desc="Title tooltip and accessibility text for the button to remove zoom levels in site settings">
     Remove zoom level