clang-formatting files in //net/cookies to clear up a diff.

The change in https://codereview.chromium.org/876973003 is vaguely
incomprehensible because of all the clang-format changes. This patch
formats all the files that patch touches in the hopes of clearing up
the diff.

BUG=459154

Review URL: https://codereview.chromium.org/929303003

Cr-Commit-Position: refs/heads/master@{#317274}
11 files changed