This change is made in anticipation of needing more than one kind
of reader in future. Most notably, a reader to extract data from
the MySQL results database would be a nice addition.
BUG=None
TEST=run showbootdata on any pre-existing data set
Change-Id: I5811aa1427a2714ce6ba392cdec584b4236162fd
Reviewed-on: http://gerrit.chromium.org/gerrit/2644
Reviewed-by: Mike Truty <truty@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
BUG=chromium-os:8655
TEST=run bootperf as described by 'bootperf --help'
TEST=run showbootstats as described by 'showbootstats --help'
Review URL: http://codereview.chromium.org/4148011
Change-Id: Idcfe206f7708fe5290960149952239219d1a96f6
