Revert of Removing #defines previously used for building without BoringSSL/OpenSSL.

Revert of Removing #defines previously used for building without BoringSSL/OpenSSL. (patchset #2 id:20001 of https://codereview.webrtc.org/2640513002/ )

Reason for revert:
Broke chromium build, due to a config being removed. Will add it back and remove the dependency in a chromium CL.

Original issue's description:
> Removing #defines previously used for building without BoringSSL/OpenSSL.
> 
> These defines don't work any more, so they only cause confusion:
> 
> FEATURE_ENABLE_SSL
> HAVE_OPENSSL_SSL_H
> SSL_USE_OPENSSL
> 
> BUG=webrtc:7025
> 
> Review-Url: https://codereview.webrtc.org/2640513002
> Cr-Commit-Position: refs/heads/master@{#16196}
> Committed: https://chromium.googlesource.com/external/webrtc/+/eaa826c2ee0668cfb4a0dfb66f8d388b65da20f5

TBR=kjellander@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7025
Review-Url: https://codereview.webrtc.org/2648003003
Cr-Commit-Position: refs/heads/master@{#16197}
Committed: https://chromium.googlesource.com/external/webrtc/+/f33491ebaf3adb2e7afc57ed5735536d17bf0f3c

[Taylor Brandstetter, 2017-01-21 01:01:32]

The CQ bit was checked by deadbeef@webrtc.org

[Taylor Brandstetter, 2017-01-21 01:01:33]

Created Revert of Removing #defines previously used for building without
BoringSSL/OpenSSL.

[commit-bot: I haz the power, 2017-01-21 01:01:37]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-01-21 01:01:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484960492740780, "parent_rev":
"eaa826c2ee0668cfb4a0dfb66f8d388b65da20f5", "commit_rev":
"f33491ebaf3adb2e7afc57ed5735536d17bf0f3c"}

[commit-bot: I haz the power, 2017-01-21 01:01:49]

Description was changed from

==========
Revert of Removing #defines previously used for building without
BoringSSL/OpenSSL. (patchset #2 id:20001 of
https://codereview.webrtc.org/2640513002/ )

Reason for revert:
Broke chromium build, due to a config being removed. Will add it back and remove
the dependency in a chromium CL.

Original issue's description:
> Removing #defines previously used for building without BoringSSL/OpenSSL.
> 
> These defines don't work any more, so they only cause confusion:
> 
> FEATURE_ENABLE_SSL
> HAVE_OPENSSL_SSL_H
> SSL_USE_OPENSSL
> 
> BUG=webrtc:7025
> 
> Review-Url: https://codereview.webrtc.org/2640513002
> Cr-Commit-Position: refs/heads/master@{#16196}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/eaa826c2ee0668cfb4a0dfb66...

TBR=kjellander@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7025
==========

to

==========
Revert of Removing #defines previously used for building without
BoringSSL/OpenSSL. (patchset #2 id:20001 of
https://codereview.webrtc.org/2640513002/ )

Reason for revert:
Broke chromium build, due to a config being removed. Will add it back and remove
the dependency in a chromium CL.

Original issue's description:
> Removing #defines previously used for building without BoringSSL/OpenSSL.
> 
> These defines don't work any more, so they only cause confusion:
> 
> FEATURE_ENABLE_SSL
> HAVE_OPENSSL_SSL_H
> SSL_USE_OPENSSL
> 
> BUG=webrtc:7025
> 
> Review-Url: https://codereview.webrtc.org/2640513002
> Cr-Commit-Position: refs/heads/master@{#16196}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/eaa826c2ee0668cfb4a0dfb66...

TBR=kjellander@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7025

Review-Url: https://codereview.webrtc.org/2648003003
Cr-Commit-Position: refs/heads/master@{#16197}
Committed:
https://chromium.googlesource.com/external/webrtc/+/f33491ebaf3adb2e7afc57ed5...
==========

[commit-bot: I haz the power, 2017-01-21 01:01:50]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/f33491ebaf3adb2e7afc57ed5...