Bug 981085 - Stop using OS.File in apps code. r=fabrice, a=lsblakk
Bug 972927 - Re-enable dom/apps tests on b2g. r=RyanVM, a=test-only
Bug 991246 - Fix "aIdsApp is undefined" error in OperatorApps.jsm. r=cjc, a=lsblakk
Bug 992589 - OperatorApps.jsm errors when running with and without Single Variant apps. r=ferjm, a=lsblakk
Bug 983481 - Open a post activation landing page. r=markh, a=lsblakk
Bug 1000423 - Properly convert from appunits/layout device pixels to layer pixels for composition bounds calculation. r=botond, a=lsblakk

To get layer pixels (doesn't matter which layer, they are all the same to layout because there is no async transform) you need to multiply by the cumulative resolution.

The fact that our units system says that multiplying by the parent resolution will work is a problem with our units system.
Merge mozilla-beta to b2g30. a=merge