Suppress a leak in the extension message service triggered by bookmark ui tests.
Suppress a leak in the extension message service triggered by bookmark ui tests.

BUG=51679
TEST=none
TBR=glider

Review URL: http://codereview.chromium.org/3106003

git-svn-id: http://src.chromium.org/svn/trunk/src@55566 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b55ebd5b887c708d9b606a7b70a2d8a5437bd52e
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