Reduce inter-upload interval for UMA logs to 30 minutes
Reduce inter-upload interval for UMA logs to 30 minutes

Reduce the rate at which we upload UMA stats.

r=laforge
Review URL: http://codereview.chromium.org/1999003

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@46727 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