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This is strictly a formatting change, generated by manually running yapf
over the affected files. It's a precursor to a subsequent move and minor
refactoring of this code, as modified files will always get yapf applied
and that would otherwise create a lot of noise in the coming CLs.

Bug: 1060467
Change-Id: I188ac6cc71fda2cd08a6f4695f67c5c0f04d2737
Tbr: oksamyt@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2098265Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#749272}