Only call SendProfile() on slow commands
Only call SendProfile() on slow commands

Reduce calling SendProfile to long running commands. There's lots of low hanging fruit (slow commands) to optimize before we need perf stats from fast commands.

R=maruel@chromium.org
BUG=

Review URL: https://chromiumcodereview.appspot.com/11416230

git-svn-id: bd64dd6fa6f3f0ed0c0666d1018379882b742947@170009 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

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