Add suppressions for two valgrind regressions
Add suppressions for two valgrind regressions

TBR=georgey,yfriedman

BUG=82183,82186
TEST=Greener valgrind bots

Review URL: http://codereview.chromium.org/6995034

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@84867 0039d316-1c4b-4281-b951-d872f2087c98

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