Please describe the problem:
Here is a snippet of SVG that you can plug in and test. Stroke-widths scale when they should not.

<svg xmlns="http://www.w3.org/2000/svg" baseProfile="full" style="height:100%; width:100%">
	<rect x="0%" y="0%" width="100%" height="100%" stroke="#000000" stroke-width="2px" fill="none"/>
	<line x1="0%" y1="0%" x2="100%" y2="100%" stroke="#000000" stroke-width="2px"/>
	<line x1="100%" y1="0%" x2="0%" y2="100%" stroke="#000000" stroke-width="2px"/>
</svg>

Steps to reproduce:
1. Copy snippet to file
2. use a rsvg util or embedded tool to paste the pixbuf output to a window, and have it do "pixbuf from file at size" with various "given" widths and heights parameters



Actual results:
* notice that stroke width scales relative to the given width and height when it shouldn't since "2px" is absolute value and the viewport specifies a percentage width and height (i.e. style="height:100%; width:100%")


Expected results:
The stroke-width value should not scale with is viewport width and height is a percentage, as the given width and height should override the percentage. Anotherwords, if "100%" is given for viewport width, then "px" should scale to one user unit for any given width or height value -- the rendered stroke-width should be the same.

Does this happen every time?
Yes. Note: I have not tried to set a cairo matrix to see if it makes a difference to render to cairo instead of a pixbuf. 

Other information:
 This snippet work correct under Firefox. You can look at http://www.dzonux.net for an example, which you can adjust the size of firefox window and notice how the stroke-widths are absolute and do not scale.

I checked the SVG documentation, and it confirms that firefox does it correctly for relative specified viewports. If viewport height and width are absolute, then then the stroke-widths scale to the given height and width.