Bug 945323 - Add mochitest to ensure that download attribute on anchor ('a') tag is respected by the DOM Downloads API. r=qdot
Bug 947504 - Only enable HwcComposer2D by default if hardware supports it. r=gal

This feature will only be enabled by default on hardware that supports it
which sets the gonk prop "ro.display.colorfill" to true.

The feature can still be force enabled (or force disabled) via the
"layers.composer2d.enabled" setting.
Bug 948743 - Query interface stat directly. r=vchang, r=acperez
Bug 953034 - Part 1: Reply RegisterNotification event EVENT_TRACK_CHANGED with correct parameter whether a track is selected or not. r=gyeh
Bug 953034 - Part 2: Change MediaNumber type to uint64_t. r=gyeh