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: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@69938 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