Bug 1025497 - Stop using gfxImageSurface in Cocoa widget code. r=mstange
Bug 1025858 - Remove gfxPlatform's SourceSnapshotDetached. r=gal
Bug 1025802 - Get rid of the Thebes backed gfxContext in the GTK widget code (Moz2D conversion). r=mattwoodrow
Bug 1022821, part 3 - In content code, stop returning RefPtr and, where not an out-param, stop using RefPtr arguments. r=gw280