asapersson a2c58e2198 Switch to use new implementation in metrics.h for gathering statistics.
Sparse macro replaced for all audio histograms that have a constant name.

BUG=webrtc:5283

Review URL: https://codereview.webrtc.org/1762863003

Cr-Commit-Position: refs/heads/master@{#11885}
2016-03-07 09:53:08 +00:00
..
2016-01-13 00:26:55 +00:00