Change download-baselines script to download images from skia-autogen SVN repo

Change download-baselines script to download images from skia-autogen SVN repo

I have copied the old version (which downloads the images from the buildbots
directly, but only works with our Mac buildbots) to download-baselines-old,
so we can use either version during a transition period.

Another difference: the new version sets the mimetype property of all image
files in the baseline_subdir, even those that have not changed.

BUG=386
http://code.google.com/p/skia/issues/detail?id=386 ('make buildbots write out RunGM image results to a browsable directory')
Committed: https://code.google.com/p/skia/source/detail?r=3058

[bungeman, 2012-01-13 22:17:42]

On 2012/01/13 21:59:43, epoger wrote:

LGTM