GitLab

Instead of expanding UMA_HISTOGRAM_ENUMERATION macro in 19 places, use a
single static method to log this histogram.  The motivation for this
change is to avoid binary bloat.

This is a follow-up to https://crrev.com/c/1055949.

This CL results in 2384 byte decrease in binary size for locally
compiled release build on Linux, and no change for debug build.

Bug: 831536
Change-Id: I0b5e741e29529c9f6ae22336b3a6c3d194042249
Reviewed-on: https://chromium-review.googlesource.com/1071731Reviewed-by: Charlie Harrison <csharrison@chromium.org>
Commit-Queue: Bence Béky <bnc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561607}