This is a tracking bug for turning on nsTextFrameThebes.
I turned this on on trunk. I'll leave the bug open until I'm sure it sticks. Right now I think the biggest outstanding issue is not actually linked here as a blocker --- it's a regression in plain-text layout performance. See bug 367116.
I backed it out because it caused crashes on Windows tinderboxes.
I checked this in again. This time I think it sticks. There was one reftest regression which I marked as failing: filed as bug 385234.
10 years ago