mozilla-b2g/gaia — pull request #10407 by asutherland (2013-06-14 23:18:57+00:00)
Title: Bug 882994 - [email] UI: Replace sync progress bar (including candy bar) / messages spinner with single spinning refresh button.

This is both a performance win (animations chew CPU, especially the candybar)
and a UX win since it gets rid of the confusing determinate progress bar
status.