Suppress leak in NewTabObserver::Observe
Suppress leak in NewTabObserver::Observe

BUG=75137
TEST=none
TBR=glider@chromium.org

Review URL: http://codereview.chromium.org/6635015

git-svn-id: http://src.chromium.org/svn/trunk/src@77134 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 8f4b380b57a660154cd709c449ee20f59a883f5c
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser