mozilla-b2g/gaia — pull request #7840 by crh0716 (2013-01-29 10:08:21+00:00)
Title: Bug 834977 - Find available div for incoming calls

https://bugzilla.mozilla.org/show_bug.cgi?id=834977

Added a data attribute "data-occupied" recording divs in use. This prevents from assigning a div displaying a call to a new incoming call.