Add another issue to the known crashes.
Add another issue to the known crashes.

BUG=21295

TEST=None

Review URL: http://codereview.chromium.org/200044

git-svn-id: http://src.chromium.org/svn/trunk/src@25670 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: c01c6f3ff77328016e4e51adca0dc24e797ca7e1
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