servo/servo — pull request #3399 by pcwalton (2014-09-18 01:28:40+00:00)
Title: Handle generated content with `display: block` correctly during flow

construction.

The iteration was incorrect here. Although it accidentally worked
before, it will cause problems when we have incremental style
recalculation.

The `after_block_iteration` reftest will become interesting once we have
incremental style recalc.

r? @glennw