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Fix issues with histograms.xml OWNERS.

- Fixes common typos in email addresses.
- For metrics where the first owner is not a @chromium.org or a
  @google.com and which have another owner with such an address,
  moves that owner to be the primary owner. This ensures there's
  a primary Google contact for any metrics we're collecting.

This was done by looking through the following output and manually
fixing problems:
grep "<owner>" histograms.xml | grep -v google.com | grep -v chromium.org  | grep -v OWNERS | grep -v "Add more owner tags"

Bug: None
Change-Id: I5c9288764008764cd6634726a27a3cb24ad1f9d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2013758
Auto-Submit: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#734335}