Widen a suppression.
Widen a suppression.

This adds two stacks that I should've added in http://codereview.chromium.org/4114004 (see http://build.chromium.org/p/chromium.memory/builders/Chromium%20Mac%20(valgrind)/builds/232/steps/memory%20test:%20unit/logs/stdio ).

BUG=61228
TEST=greener memory waterfall
TBR=mnissler

Review URL: http://codereview.chromium.org/4183010

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@64607 0039d316-1c4b-4281-b951-d872f2087c98

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