layout/reftests/transform-3d/matrix3d-1a.html and layout/reftests/transform-3d/matrix3d-2a.html both test that a div with a particular matrix3d() transform is equivalent to another div. But the div just contains a line of text, and the transform sends the text off the screen to the top in both cases, so it's not actually testing that they're the same. In particular, matrix3d-2a.html is testing that "matrix3d(1,0,0,0, 0,2,0,0, 0,0,3,0, 4,5,6,1)" is equivalent to "scale3d(1,2,3) translate3d(4px,5px,6px)", but it's not -- it's equivalent to "translate3d(4px,5px,6px) scale3d(1,2,3)".
These were added in part 13 of the patchset for bug 505115. Patch to be attached in a moment.
Created attachment 593916 [details] [diff] [review]
Reftests in this directory pass both before and after this patch. If I undo the reversal of translate3d() and scale3d() in matrix3d-2a.html, but still add background: gold, I get a TEST-UNEXPECTED-FAIL.
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