So the issue is that:
http://www.w3.org/TR/SVGMobile12/coords.html#IntrinsicSizing
defines the intrinsic ratio, but doesn't define the intrinsic size.

But http://www.w3.org/TR/SVGMobile12/struct.html#SVGElementWidthAttribute
sort of defines what I described in the previous paragraph (but not
quite), and says some things about intrinsic size that don't really
make sense.


So I think what needs to change is that:

  1. http://www.w3.org/TR/SVGMobile12/coords.html#IntrinsicSizing
  should also define the intrinsic width and intrinsic height

  2.  http://www.w3.org/TR/SVGMobile12/struct.html#SVGElementWidthAttribute
  should hyperlink the word "defines" to (1).

Then we can argue over exactly what the definition in (1) should be
-- probably the values should just be propagated, although I'm a
little uncomfortable propagating the implicit height="100%" in some
cases.