Convert use of int ms to TimeDelta in files owned by ananta.

R=ananta@chromium.org
BUG=108171
TEST=


Review URL: http://codereview.chromium.org/9187024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@117333 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed