Initialized variable expires_in_secs to 0.
Initialized variable expires_in_secs to 0.

This was triggering a gcc warning (-Wmaybe-uninitialized).

BUG=none
TEST=trybots.


Review URL: http://codereview.chromium.org/9195021

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@118730 0039d316-1c4b-4281-b951-d872f2087c98

yitian134/chromium,gavinp/chromium,gavinp/chromium,gavinp/chromium,adobe/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,ropik/chromium,adobe/chromium,ropik/chromium,adobe/chromium,ropik/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,yitian134/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,gavinp/chromium,yitian134/chromium,adobe/chromium,gavinp/chromium,ropik/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,gavinp/chromium,yitian134/chromium,ropik/chromium,adobe/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium