Add a notification about auto-granted access to file systems.

chrome/app/chromeos_strings.grdp

Index: chrome/app/chromeos_strings.grdp
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index 2f1f404ffcf2c9e6c2298a811d001e68c7b814c7..5e9a4375924ce850aebedaf0d65bdd30ad357168 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -6135,4 +6135,11 @@ All users must sign out to continue.
   <message name="IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_DIALOG_NO_BUTTON" desc="Label on the button to reject permissions.">
     No
   </message>
+  <message name="IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_NOTIFICATION_MESSAGE" desc="Message in a notification about granted read-only pemissions (read, write, delete, create files and directories) to a volume (eg. USB drive, SD card, MTP device) with the specified name to the extension.">
+    Read-only access to <ph name="VOLUME_NAME">$1<ex>FooBar 4GB</ex> has been granted.</ph>
+  </message>
+  <message name="IDS_FILE_SYSTEM_REQUEST_FILE_SYSTEM_NOTIFICATION_WRITABLE_MESSAGE" desc="Message in a notification about granted full permissions (read, write, delete, create files and directories) to a volume (eg. USB drive, SD card, MTP device) with the specified name to the extension.">
+    Full access to <ph name="VOLUME_NAME">$1<ex>FooBar 4GB</ex> has been granted.</ph>

[jww, 2015/03/26 20:14:59]

Instead of "Full access," which sounds ambiguous, can you rewrite as "read and
write"? We've been aiming to use "read and write" whenever possible in
extensions instead of "access".

[mtomasz, 2015/03/26 23:24:11]

Is "Read and write access to XXX has been granted." OK?

[mtomasz, 2015/03/27 05:01:38]

Done.

+  </message>
+
 </grit-part>