Up the new tab paint observer timeout from 2s to 5s.  Trying to see if this gets us more accurate data on new tab times.
Up the new tab paint observer timeout from 2s to 5s.  Trying to see
if this gets us more accurate data on new tab times.

BUG=21398

TBR=evanm (ok'ed in person)

Review URL: http://codereview.chromium.org/257052

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@28050 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