Merge "Rate-limit how often we collect wtf() logs." into nyc-dev
am: cf0cc88

* commit 'cf0cc881ebf2c2f00129dd9e045e23f6bf970d54':
  Rate-limit how often we collect wtf() logs.

Change-Id: I4e93eb801fe00f6336c00bd2a2bd7e693526bd98