sizeof needs parens around types.
sizeof needs parens around types.

clang is more strict about these things than MSVS.

BUG=82385

Review URL: https://codereview.chromium.org/13892012

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@148918 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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