Update known_crashes.txt. BUG=27190,27191
Update known_crashes.txt.
BUG=27190,27191

Review URL: http://codereview.chromium.org/371081

git-svn-id: http://src.chromium.org/svn/trunk/src@31487 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: b26247b3629cf18740fa3c946c1709ea125e70ce
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