[orca-list] Google Chrome: Orca reports incorrect item count in files list of Google Drive

[Andy Borka <sonfire11 gmail com>]

Hi,

Orca master, Ubuntu 20.04, Google Chrome unstable.

When navigating the file list in Google Drive, Orca reports the incorrect item count.

1. Ensure you have Orca master and Google Chrome unstable installed.
2. Navigate to www.google.com.
3. On the website that appears, navigate to the Google apps expandable button and activate it.
4. When it expands, activate the Drive link.
5. Upon arriving at Drive, Orca will go into focus mode and put focus on the files list.
6. In the files list, press up and down arrows to navigate from file to file.

Expected result: Orca announces the correct item count. For example, 1 of 10, or 4 of 10.

Actual result: Orca announces the item count as though you are on the last item in the list (10 of 10 for example).