Valgrind: Suppress a weird error on the CroS bots.
Valgrind: Suppress a weird error on the CroS bots.

BUG=43451
TEST=CrOS Valgrind 4 goes green.
Review URL: http://codereview.chromium.org/2010003

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@46605 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