Revert of mac: Roll hermetic toolchain to Xcode 8.3.2.

Revert of mac: Roll hermetic toolchain to Xcode 8.3.2. (patchset #5 id:80001 of https://codereview.chromium.org/2941293003/ )

Reason for revert:
Caused build failures: https://build.chromium.org/p/chromium.mac/builders/Mac10.10%20Tests/builds/19709

Original issue's description:
> mac: Roll hermetic toolchain to Xcode 8.3.2.
> 
> Xcode 8.3.2 requires macOS 10.12+. This version of Xcode 8.3.2 has both the
> 10.10 and 10.12 SDKs, and builds will continue to use the 10.10 SDK.
> 
> BUG=624049
> 
> Review-Url: https://codereview.chromium.org/2941293003
> Cr-Original-Commit-Position: refs/heads/master@{#480685}
> Committed: https://chromium.googlesource.com/chromium/src/+/abd9ba0ebfca0ce7a37c14593d55ebee56c4a55c
> Review-Url: https://codereview.chromium.org/2941293003
> Cr-Commit-Position: refs/heads/master@{#480918}
> Committed: https://chromium.googlesource.com/chromium/src/+/7f8f750fffcee0e256c228655e9d331f2dcb6f58

TBR=dpranke@chromium.org,erikchen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=624049
Review-Url: https://codereview.chromium.org/2946133002
Cr-Commit-Position: refs/heads/master@{#480955}
Committed: https://chromium.googlesource.com/chromium/src/+/00f82a9fe237df3f8c8d2db634df493b9699f83e

[pdr., 2017-06-20 21:19:44]

The CQ bit was checked by pdr@chromium.org

[pdr., 2017-06-20 21:19:44]

Created Revert of mac: Roll hermetic toolchain to Xcode 8.3.2.

[commit-bot: I haz the power, 2017-06-20 21:20:12]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-06-20 21:20:31]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497993584280600, "parent_rev":
"fe199f4407a2d90e1cd7d95b072896f17cfd0f97", "commit_rev":
"00f82a9fe237df3f8c8d2db634df493b9699f83e"}

[commit-bot: I haz the power, 2017-06-20 21:20:44]

Description was changed from

==========
Revert of mac: Roll hermetic toolchain to Xcode 8.3.2. (patchset #5 id:80001 of
https://codereview.chromium.org/2941293003/ )

Reason for revert:
Caused build failures:
https://build.chromium.org/p/chromium.mac/builders/Mac10.10%20Tests/builds/19709

Original issue's description:
> mac: Roll hermetic toolchain to Xcode 8.3.2.
> 
> Xcode 8.3.2 requires macOS 10.12+. This version of Xcode 8.3.2 has both the
> 10.10 and 10.12 SDKs, and builds will continue to use the 10.10 SDK.
> 
> BUG=624049
> 
> Review-Url: https://codereview.chromium.org/2941293003
> Cr-Original-Commit-Position: refs/heads/master@{#480685}
> Committed:
https://chromium.googlesource.com/chromium/src/+/abd9ba0ebfca0ce7a37c14593d55...
> Review-Url: https://codereview.chromium.org/2941293003
> Cr-Commit-Position: refs/heads/master@{#480918}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7f8f750fffcee0e256c228655e9d...

TBR=dpranke@chromium.org,erikchen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=624049
==========

to

==========
Revert of mac: Roll hermetic toolchain to Xcode 8.3.2. (patchset #5 id:80001 of
https://codereview.chromium.org/2941293003/ )

Reason for revert:
Caused build failures:
https://build.chromium.org/p/chromium.mac/builders/Mac10.10%20Tests/builds/19709

Original issue's description:
> mac: Roll hermetic toolchain to Xcode 8.3.2.
> 
> Xcode 8.3.2 requires macOS 10.12+. This version of Xcode 8.3.2 has both the
> 10.10 and 10.12 SDKs, and builds will continue to use the 10.10 SDK.
> 
> BUG=624049
> 
> Review-Url: https://codereview.chromium.org/2941293003
> Cr-Original-Commit-Position: refs/heads/master@{#480685}
> Committed:
https://chromium.googlesource.com/chromium/src/+/abd9ba0ebfca0ce7a37c14593d55...
> Review-Url: https://codereview.chromium.org/2941293003
> Cr-Commit-Position: refs/heads/master@{#480918}
> Committed:
https://chromium.googlesource.com/chromium/src/+/7f8f750fffcee0e256c228655e9d...

TBR=dpranke@chromium.org,erikchen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=624049

Review-Url: https://codereview.chromium.org/2946133002
Cr-Commit-Position: refs/heads/master@{#480955}
Committed:
https://chromium.googlesource.com/chromium/src/+/00f82a9fe237df3f8c8d2db634df...
==========

[commit-bot: I haz the power, 2017-06-20 21:20:46]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/00f82a9fe237df3f8c8d2db634df...

[Dirk Pranke, 2017-06-20 22:39:23]

lgtm