mozilla-b2g/gaia — pull request #16699 by yor-mozilla-com (2014-02-27 09:21:59+00:00)
Title: Bug 972731 - [Messages] Reduce Thread rendering reflows

Delay thread rendering by grouping threads into larger
sets before calling appendThread.

The goal is to reduce reflows on rendering the thread list.

Delay setting contact info for threads after initial render size
until they become visible via scrolling.