Switch to TimeDelta interfaces in chrome automation test infrastructure.

Switch to TimeDelta interfaces in chrome automation test infrastructure.

This is a resubmit of a previously reverted commit:
https://chromiumcodereview.appspot.com/10736064/

BUG=108171
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=147700

[Ted Vessenes, 2012-07-14 02:16:54]

This failed because base/time.h was missing from an include.

[Ted Vessenes, 2012-07-16 16:40:09]

This seems like a pretty simple fix, but let me know if you need me to look into
this more.

[ananta, 2012-07-17 18:14:48]

lgtm

[Ted Vessenes, 2012-07-20 00:23:09]

sky@chromium.org: Can you review chrome/test/*?

My assignment script originally suggested ben@chromium.org (who reviewed the
first one), but I haven't heard from him in a week, so perhaps he's on vacation
or something.

[sky, 2012-07-20 15:34:22]

LGTM

[commit-bot: I haz the power, 2012-07-20 18:30:07]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tedvessenes@gmail.com/10787010/7041

[commit-bot: I haz the power, 2012-07-20 18:30:33]

Presubmit check for 10787010-7041 failed and returned exit status 1.

Running presubmit commit checks ...

** Presubmit Messages **
If this change requires manual test instructions to QA team, add
TEST=[instructions].

** Presubmit ERRORS **
Missing LGTM from an OWNER for files in these directories:
    chrome/test/automation

Presubmit checks took 7.6s to calculate.

[Ted Vessenes, 2012-07-20 18:32:58]

That explains why the script suggested Ben-- I missed the noparent on
chrome/test/automation/OWNERS.

jam@chromium.org: Please review chrome/test/automation/*
Thanks much.

[jam, 2012-07-20 18:38:12]

lgtm

[commit-bot: I haz the power, 2012-07-20 18:38:59]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tedvessenes@gmail.com/10787010/7041

[commit-bot: I haz the power, 2012-07-20 19:41:58]

Change committed as 147700