This script is designed to be used by the RecreateSKPs bot. Eventually, the bot will:
1. Generate new SKPs
2. Upload the new SKPs to a subdirectory with an ID or generation number.
3. Change Skia to use the new SKPs:
a. Create and upload a Skia CL which changes the "current SKP generation" file to point to the new SKPs
b. Launch Perf trybots on that CL.
c. Call this script every 5 minutes until it successfully creates new baselines for each of the launched Perf bots.
d. Add the new baselines to the CL
e. Upload a second patch set of the CL
f. Check the CQ bit on the CL
BUG=skia:2225
R=epoger@google.com, halcanary@google.com, bensong@google.com
Author: borenet@google.com
Review URL: https://codereview.chromium.org/297893004
git-svn-id: http://skia.googlecode.com/svn/trunk@14921 2bbb7eff-a529-9590-31e7-b0007b416f81
