Import some minor cleanups from Google's copy. Change-Id: Ib32933e9cd85d72da254cb4c53ffc5ea85497c7b Reviewed-on: https://code-review.googlesource.com/2260 Reviewed-by: Perry Lorier <perryl@google.com> Reviewed-by: Paul Wankadia <junyer@google.com> 
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