The GetUserToCanvasTM call in nsSVGUtils::PaintFrameWithEffects is fetching exactly what aTransform provides. It looks like I overlooked that while fixing bug 932771 since I was specifically looking for GetCanvasTM calls.
Created attachment 8851387 [details] [diff] [review] patch
Pushed by email@example.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/84ffdb0d40f9 Get rid of the GetUserToCanvasTM call in nsSVGUtils::PaintFrameWithEffects. r=longsonr