Widen bidi text suppression.

BUG=333572
TBR=eae@chromium.org

Review URL: https://codereview.chromium.org/130433005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244439 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244439