Add weekly crash counters, refactor metrics_daemon, respect opt-in in library.

BUG=5340,5814

Change-Id: I2c207055f1ebe48051193395e2dbe38d9140b025

Review URL: http://codereview.chromium.org/3171023
12 files changed
tree: 740a676b145b36b5f85aae22b1c20d0916e718aa
  1. metrics/