The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6ab4c526099bb1b133d0a61a459bf8dc1b483bb0

commit 6ab4c526099bb1b133d0a61a459bf8dc1b483bb0
Author: Alexei Svitkine <asvitkine@chromium.org>
Date: Mon Apr 23 20:26:21 2018

Update pretty print rules for actions and histograms.

This addresses TODOs added in:
https://chromium-review.googlesource.com/c/chromium/src/+/1015293

For actions, names are now sorted in a case insensitive
way, to match histograms.

For histograms, suffixes are now sorted.

Both of the changes require reformatting of the relevant
XML file, which is also done in this CL.

Landing TBR to avoid rebasing/merge conflicts given this
changes histograms.xml extensively.

Bug:  835915 
TBR: isherman@chromium.org
Change-Id: Ic8807f695206e2bc31a33440dd47c48f89224f00
Reviewed-on: https://chromium-review.googlesource.com/1024404
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#552812}
[modify] https://crrev.com/6ab4c526099bb1b133d0a61a459bf8dc1b483bb0/tools/metrics/actions/actions.xml
[modify] https://crrev.com/6ab4c526099bb1b133d0a61a459bf8dc1b483bb0/tools/metrics/actions/print_style.py
[modify] https://crrev.com/6ab4c526099bb1b133d0a61a459bf8dc1b483bb0/tools/metrics/histograms/histograms.xml
[modify] https://crrev.com/6ab4c526099bb1b133d0a61a459bf8dc1b483bb0/tools/metrics/histograms/print_style.py