This reverts commit 94b37d283b45036a471e316ffcaf8fe71914a7ac.

Reason for revert: need to revert earlier third_party/zlib CLs.

Original change's description:
> Run "git cl format" on third_party/zlib.
> 
> TBR=thakis@chromium.org
> Bug:762564
> 
> Change-Id: I63a809b785a21190b0b8a1744cf073a02beaa239
> Reviewed-on: https://chromium-review.googlesource.com/644512


> Commit-Queue: Noel Gordon <noel@chromium.org>
> Reviewed-by: Stuart Langley <slangley@chromium.org>
> Reviewed-by: Noel Gordon <noel@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#500206}

TBR=noel@chromium.org,cavalcantii@chromium.org,cblume@chromium.org,slangley@chromium.org,nigeltao@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 762564
Change-Id: Ie01454d9b4f24da84a6ae9120ff9d73cf20f32b7
Reviewed-on: https://chromium-review.googlesource.com/669539


Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#502402}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: dcf65ae672b4b2e3235310f7ef7415294e75e472