Improve STRING_STATS
Improve STRING_STATS

In order to optimize string usage, I've been iterating locally on the
STRING_STATS code. This CL updates the checked in code to match the new hotness
I've been using locally.

R=eseidel

Review URL: https://chromiumcodereview.appspot.com/16578003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@151981 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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