See which font file is being used by Chromium to render a block of text

In Linux, not all Windows fonts are available. I can analyse a site's CSS code in Chromium to see which 开发者_运维问答fonts are preferred to render a certain block of text, but as far as I know there's no way to determine which font file is actually being used to render it.

Is there a way to find out which font file is being used to render a certain block of text in Chromium?

If you've used the Developer toolbar to get the font stack being used for the text, can you just modify the stack to see which of the fonts is actually being used?

ie. if the stack is Arial, Helvetica, sans-serif; take out Arial, if the font changes, you know it was being rendered in Arial.