Suppress a leak detected by Mac Valgrind UI (3) that developed in r35804:35813.
Suppress a leak detected by Mac Valgrind UI (3) that developed in r35804:35813.

BUG=31985
TEST=Mac Valgrind UI (3)

Review URL: http://codereview.chromium.org/545013

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@35939 0039d316-1c4b-4281-b951-d872f2087c98

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