Bug 1090211 - Calculate the bounds of circles and ellipses using Math when we have a rectilinear transform. r=longsonr
Bug 949661 - Make PathBuilderCG::Arc use ArcToBezier instead of CGPathAddArc to work around a CG stroke dashing bug. r=jrmuizel
Bug 1089753 - Make WindowSnapshot.js's assertSnapshots() print out the number of differing pixels and their maximum difference. r=dholbert
Bug 1088753 - Remove gfxContext::NewSubPath(). r=Bas