Read-only transactions do not change the size of the DB file (guaranteed by the database authorizer), and therefore do not need to trigger quota updates.
Created attachment 40414 [details] patch
Comment on attachment 40414 [details] patch r=me.
Comment on attachment 40414 [details] patch Clearing flags on attachment: 40414 Committed r48973: <http://trac.webkit.org/changeset/48973>
All reviewed patches have been landed. Closing bug.