Enable the chunk storage engine
Summary: Ref T7149. This works now, so enable it.
Test Plan:
- Uploaded large and small files in Firefox, Safari and Chrome.
- Uploaded large files with arc upload.
- Stopped/resumed large files with all clients.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7149
Differential Revision: https://secure.phabricator.com/D12079