Modify a temporary hack to be more inclusive.
Modify a temporary hack to be more inclusive.

This papers over a race resulting from the original hack (which itself masks a real problem).
I am trying to find the real culprit (so this temp hack can be decomissioned) as part of <http://codereview.chromium.org/160447>.

BUG=http://crbug.com/16972

Review URL: http://codereview.chromium.org/160478

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@22246 0039d316-1c4b-4281-b951-d872f2087c98

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