Suppress crash in WebCore::UniscribeHelperTextRun::UniscribeHelperTextRun found by reliability bot.
Suppress crash in WebCore::UniscribeHelperTextRun::UniscribeHelperTextRun found by reliability bot.

R=yutak
BUG=31936
TEST=none

Review URL: http://codereview.chromium.org/3844003

git-svn-id: http://src.chromium.org/svn/trunk/src@62914 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 74fc43ab369b1a8db55d3213d0a5658d0ba2f00d
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