Re: [geometry] Review request

I think there are few exception cases missing in the DOMMatrix:

 - SVGMatrix.rotateFromVector() can raise an exception, should
DOMMatrix.rotateFromVector() and rotateFromVectorBy() also raise
exceptions if values are invalid?
 - DOMMatrix.inverse() raises an exception if the matrix is
non-invertible, should DOMMatrix.invert() also do it?
 - can DOMMatrix.rotateAxisAngle() and rotateAxisAngleBy() fail? What
if x, y, and z are zero?

BR,
Kari