From what I understand the list is part of the ChromeBot Tool, a sub-project of Chromium.

   ChromeBot is a distributed crash detection system.

   Chrome is run on a list of URLs to check for crashes.  A 
   pool of machines is used to distribute the workload, 
   each machine might potentially launch several instances 
   of Chrome. Crashes detected are symbolicated and saved 
   in database.

http://src.chromium.org/svn/trunk/tools/chromebot/README.txt