Disable crashy ExtensionApiTest.WindowOpen
Disable crashy ExtensionApiTest.WindowOpen

First crash detected on Dec 01, now also happened on a trybot:
http://build.chromium.org/p/tryserver.chromium/builders/linux_chromeos/builds/1917
slave: vm55-m4

TBR=aa

BUG=64899
TEST=browser_tests

Review URL: http://codereview.chromium.org/6042004

git-svn-id: http://src.chromium.org/svn/trunk/src@69938 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 14dbf3d9d24d580b093a796eb5ac698e04725a5d
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