Touch up PHP/JS interactions for inline comments
Summary:
Ref T1460. Overall:
- Pass objectOwnerPHID consistently.
- Pass viewer consistently.
- Set the correct draft state for checkboxes on the client.
Test Plan:
- Made inline comments in Differential.
- Made inline comments in Diffusion.
Reviewers: chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T1460
Differential Revision: https://secure.phabricator.com/D12186