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Also converted all other calls from macros to functions which is the
recommended method for any histogram emitted more than 1 per second
or so.

Bug: 1053105
Change-Id: Id9af6e33098de961f5e8cebf334615a12a0602e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108802
Commit-Queue: Brian White <bcwhite@chromium.org>
Reviewed-by: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751993}