Revert of Roll gyp 5170bfd38:b25bbc1f9. (patchset #2 id:20001 of https://codereview.chromium.org/1696953002/ )
Revert of Roll gyp 5170bfd38:b25bbc1f9. (patchset #2 id:20001 of https://codereview.chromium.org/1696953002/ )

Reason for revert:
Breaks https://build.chromium.org/p/chromium.mac/buildstatus?builder=Mac10.6%20Tests&number=12047

Original issue's description:
> Roll gyp 5170bfd38:b25bbc1f9.
>
> b25bbc1f9 Update Xcode emulation extra plist items.
>
> BUG=577711
> TBR=thakis@chromium.org

TBR=thakis@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577711

Review URL: https://codereview.chromium.org/1699643002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#375370}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk