jcgregorio a91dc3140c Document some skia perf interesting queries.

Preview here: http://skiadocs.com:8000/dev/tools/skiaperf?cl=839303002

BUG=skia:

Review URL: https://codereview.chromium.org/839303002

2015-01-09 10:35:52 -08:00

Developer Documentation

If you want to make changes to the Skia code, this is the place for you.