Rewrite line endings from CRLF to LF for a bunch of files.

There's a lot of other files with CRLF line endings in test data,
third_party, and tools. Out of caution, those files have been left
unchanged, in case anything depends on the CRLF being present.

BUG=420796
TBR=darin@chromium.org, rsleevi@chromium.org, sky@chromium.org

Review URL: https://codereview.chromium.org/630333002

Cr-Commit-Position: refs/heads/master@{#298348}
29 files changed