[chromedriver] Disable tab crash test on android.

BUG=none
TBR=frankf@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/25046008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225826 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225826