This patch correctly renames a histogram in the xml file, as well as adding units to it and related histograms.
This patch correctly renames a histogram in the xml file,
as well as adding units to it and related histograms.

BUG=

Review URL: https://codereview.chromium.org/1754703002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#378501}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk