Revert of Only record one in n line endings to save space. (patchset #4 id:60001 of https://codereview.chromium.org/1137683003/)

Reason for revert:
Test failures https://storage.googleapis.com/chromium-layout-test-archives/V8-Blink_Win/345/layout-test-results/results.html

Original issue's description:
> Only record one in n line endings to save space.
>
> R=yangguo@chromium.org
> BUG=
>
> Committed: https://crrev.com/b3d4bce593559276e68d3d7d9168f4351e4e5090
> Cr-Commit-Position: refs/heads/master@{#28837}

TBR=yangguo@chromium.org,erik.corry@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1155683010

Cr-Commit-Position: refs/heads/master@{#28841}