Remove uses of #pragma once and add PRESUBMIT check.

Remove uses of #pragma once and add PRESUBMIT check.

They violate the C++ coding style guide:
https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++.md#File-headers

BUG=webrtc:7191
NOTRY=True

Review-Url: https://codereview.webrtc.org/2707843002
Cr-Commit-Position: refs/heads/master@{#16712}
Committed: https://chromium.googlesource.com/external/webrtc/+/6aeef74b6e04bfa78a90b38b5d2323b24f0875d2

[kjellander_webrtc, 2017-02-20 08:48:40]

Description was changed from

==========
Remove uses of #pragma once and add PRESUBMIT check.

BUG=webrtc:7191
NOTRY=True
==========

to

==========
Remove uses of #pragma once and add PRESUBMIT check.

They violate the C++ coding style guide:
https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++.md...

BUG=webrtc:7191
NOTRY=True
==========

[kjellander_webrtc, 2017-02-20 08:50:26]

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

[kjellander_webrtc, 2017-02-20 08:51:48]

FYI the check is plain copy of Chromium's:
https://cs.chromium.org/chromium/src/PRESUBMIT.py?rcl=22f522e10dd7a816ec45547...

[henrika_webrtc, 2017-02-20 09:05:37]

LGTM

[kjellander_webrtc, 2017-02-20 09:10:33]

The CQ bit was checked by kjellander@webrtc.org

[commit-bot: I haz the power, 2017-02-20 09:10:43]

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, 2017-02-20 09:13:19]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1487581833870000, "parent_rev":
"fe5d521a694cecd66e8c58dc0c0e0103e7822039", "commit_rev":
"6aeef74b6e04bfa78a90b38b5d2323b24f0875d2"}

[commit-bot: I haz the power, 2017-02-20 09:13:21]

Description was changed from

==========
Remove uses of #pragma once and add PRESUBMIT check.

They violate the C++ coding style guide:
https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++.md...

BUG=webrtc:7191
NOTRY=True
==========

to

==========
Remove uses of #pragma once and add PRESUBMIT check.

They violate the C++ coding style guide:
https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++.md...

BUG=webrtc:7191
NOTRY=True

Review-Url: https://codereview.webrtc.org/2707843002
Cr-Commit-Position: refs/heads/master@{#16712}
Committed:
https://chromium.googlesource.com/external/webrtc/+/6aeef74b6e04bfa78a90b38b5...
==========

[commit-bot: I haz the power, 2017-02-20 09:13:22]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/6aeef74b6e04bfa78a90b38b5...