Add build_protobuf variable.

Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.

NOTRY=True

Committed: https://crrev.com/292e192f17b5cf46a485cd497e92b6b11f492f7b
Cr-Commit-Position: refs/heads/master@{#11236}

[kjellander_webrtc, 2016-01-13 10:36:38]

kjellander@webrtc.org changed reviewers:
+ terelius@webrtc.org

[terelius, 2016-01-13 10:50:37]

lgtm

[kjellander_webrtc, 2016-01-13 13:40:26]

Description was changed from

==========
Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.
==========

to

==========
Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.

NOTRY=True
==========

[kjellander_webrtc, 2016-01-13 13:45:45]

The CQ bit was checked by kjellander@webrtc.org

[commit-bot: I haz the power, 2016-01-13 13:45:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1589433002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1589433002/1

[commit-bot: I haz the power, 2016-01-13 13:47:02]

Description was changed from

==========
Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.

NOTRY=True
==========

to

==========
Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.

NOTRY=True
==========

[commit-bot: I haz the power, 2016-01-13 13:47:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-13 13:47:10]

Description was changed from

==========
Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.

NOTRY=True
==========

to

==========
Add build_protobuf variable.

This makes it possible to use protobuffers with
an external protobuf library instead of the one that
comes with the WebRTC code.

NOTRY=True

Committed: https://crrev.com/292e192f17b5cf46a485cd497e92b6b11f492f7b
Cr-Commit-Position: refs/heads/master@{#11236}
==========

[commit-bot: I haz the power, 2016-01-13 13:47:10]

Patchset 1 (id:??) landed as
https://crrev.com/292e192f17b5cf46a485cd497e92b6b11f492f7b
Cr-Commit-Position: refs/heads/master@{#11236}