Transition to TimeTicks from Time in timer module.
Transition to TimeTicks from Time in timer module.

One use of Time::Now() etc. appears to have not
been migrated to using of TimeTicks::Now(). 

BUG=None
TEST=None

R=eroman@chromium.org
Review URL: http://codereview.chromium.org/6714005

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@78845 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser