Bug 835150 - Remove fast-package make target and references to MOZ_FAST_PACKAGE. r=mshal
Bug 906964 - ARM: Revert the reservation of some head-room in the constant pools as it caused or tickled bug 944972. r=mjrosenb
Bug 908695 - Collect pipelines on main, dispatch to STS for stats. r=jesup
Bug 934667 - Add preferences to enable loopback devices. r=jesup
Bug 944646 - Check the DrawTarget type before downcasting PathBuilders. r=mattwoodrow

Previously the ScaledFontBase::CopyGlyphsToBuilder methods in the
various ScaledFont subclasses static_cast-ed the passed in PathBuilder
objects without checking which sort of DrawSurface they were created by.
Bug 944646 - Implement Skia path in ScaledFontBase::CopyGlyphsToBuilder. r=mattwoodrow

Handle PathBuilderSkia with a separate path specifically for
BACKEND_SKIA DrawTarget instances.
Bug 947117 - Don't tell the compiler to use debug C++ runtimes just because we're using DMD. r=glandium