Lint.

Driveby lint while working on https://crrev.com/665083009.

* Remove redundant net:: namespace qualifiers.
* Remove one redundant line.
* Change probability literals from int to float.
* Fix typos in comments.
* Add https to one link in a comment.
* git cl format to fix one indent and to reduce number of lines.

BUG=392575

Review URL: https://codereview.chromium.org/882973006

Cr-Commit-Position: refs/heads/master@{#313971}
8 files changed