Preparing to upstream: Created host_attributes and server_job_utils files.

Preparing to upstream: Created host_attributes and server_job_utils files.

Created a host_attributes file which by default doesn't do much on its own, but uses site_host_attributes when present to define attributes.  The existing HostAttributes class did not change so no existing use should regress.

Created a server_job_utils file to hold the helper classes test_item and machine_worker.  These classes are used by distribute_across_machines to manage tests and machines.

Change-Id: I4a5795bc7e6e865f616e4becf1e0781c1f51fe2b

BUG=none.
TEST=Run BVT with parallel_on_machines and distribute_across_machines on lab machines.

Committed: http://chrome-svn/viewvc/chromeos?view=rev&revision=f807c18

[pauldean_chromium, 2011-04-05 17:59:35]

Hi Eric,

Here are the changes to server_job we discussed to prepare it for upstreaming.

Thanks,
paul

[ericli, 2011-04-05 18:22:24]

LGTM.