Code out for review and I've requested a slave machine.

https://chromium-review.googlesource.com/c/chromium/tools/build/+/960124
https://chromium-review.googlesource.com/c/chromium/src/+/960125

Remaining:
1) get slave machine and add to slaves.cfg
2) land chromium-side CL
3) land infra cl
4) restart master

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6cedcff7c569387f6dd290224664cb506eb33905

commit 6cedcff7c569387f6dd290224664cb506eb33905
Author: Patrik Höglund <phoglund@chromium.org>
Date: Mon Mar 19 12:29:29 2018

Add new builder with enable_webrtc=false.

We want Chromium to build with enable_webrtc=false. I will initially
add a build bot in chromium.webrtc.

Bug:  chromium:811678 
Change-Id: If3f23a70f0102f5b65bb46e5e91eee3c0b1bbeb2
Reviewed-on: https://chromium-review.googlesource.com/960125
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544013}
[modify] https://crrev.com/6cedcff7c569387f6dd290224664cb506eb33905/testing/buildbot/chromium.webrtc.json
[modify] https://crrev.com/6cedcff7c569387f6dd290224664cb506eb33905/testing/buildbot/waterfalls.pyl
[modify] https://crrev.com/6cedcff7c569387f6dd290224664cb506eb33905/tools/mb/mb_config.pyl

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build/+/fd5fa8e2141aefe3fd7ace37dabb32ee8b64d646

commit fd5fa8e2141aefe3fd7ace37dabb32ee8b64d646
Author: Patrik Höglund <phoglund@chromium.org>
Date: Tue Mar 20 10:37:23 2018

Add builder for enable_webrtc=false.

For now, I'm just adding a bot in chromium.webrtc without any
corresponding tryslaves. I reckon breakages here will be so rare that
sheriffs can just go in and revert when appropriate.

Bug:  chromium:811678 
Change-Id: I66b7cf4f65f783e7edaa52e05bd021e16ad441b8
Reviewed-on: https://chromium-review.googlesource.com/960124
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>

[modify] https://crrev.com/fd5fa8e2141aefe3fd7ace37dabb32ee8b64d646/masters/master.chromium.webrtc/master_builders_cfg.py
[modify] https://crrev.com/fd5fa8e2141aefe3fd7ace37dabb32ee8b64d646/masters/master.chromium.webrtc/slaves.cfg
[modify] https://crrev.com/fd5fa8e2141aefe3fd7ace37dabb32ee8b64d646/scripts/slave/recipe_modules/chromium_tests/chromium_webrtc.py

All right, the bot is up and it works. enable_webrtc=false is broken though. Can somebody get to fixing it?

We've decided to get rid of enable_webrtc=false instead.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/build/+/eadc9fa15ca9cf6afcea34836bd45058c2820e8d

commit eadc9fa15ca9cf6afcea34836bd45058c2820e8d
Author: Patrik Höglund <phoglund@chromium.org>
Date: Wed Mar 21 08:59:37 2018

Revert "Add builder for enable_webrtc=false."

This reverts commit fd5fa8e2141aefe3fd7ace37dabb32ee8b64d646.

Reason for revert: Turns out bot will not be needed.

Original change's description:
> Add builder for enable_webrtc=false.
> 
> For now, I'm just adding a bot in chromium.webrtc without any
> corresponding tryslaves. I reckon breakages here will be so rare that
> sheriffs can just go in and revert when appropriate.
> 
> Bug:  chromium:811678 
> Change-Id: I66b7cf4f65f783e7edaa52e05bd021e16ad441b8
> Reviewed-on: https://chromium-review.googlesource.com/960124
> Commit-Queue: Patrik Höglund <phoglund@chromium.org>
> Reviewed-by: John Budorick <jbudorick@chromium.org>

TBR=phoglund@chromium.org,jbudorick@chromium.org

Change-Id: I0cd958f4319ecf0b1eefd1bf6e9066506e690469
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug:  chromium:811678 
Reviewed-on: https://chromium-review.googlesource.com/972981
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Patrik Höglund <phoglund@chromium.org>

[modify] https://crrev.com/eadc9fa15ca9cf6afcea34836bd45058c2820e8d/masters/master.chromium.webrtc/master_builders_cfg.py
[modify] https://crrev.com/eadc9fa15ca9cf6afcea34836bd45058c2820e8d/masters/master.chromium.webrtc/slaves.cfg
[modify] https://crrev.com/eadc9fa15ca9cf6afcea34836bd45058c2820e8d/scripts/slave/recipe_modules/chromium_tests/chromium_webrtc.py

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3691fbc7bf5198ccd2a68fabdbd6bbc689549e36

commit 3691fbc7bf5198ccd2a68fabdbd6bbc689549e36
Author: Patrik Höglund <phoglund@chromium.org>
Date: Fri Mar 23 13:58:47 2018

Revert "Add new builder with enable_webrtc=false."

This reverts commit 6cedcff7c569387f6dd290224664cb506eb33905.

Reason for revert: Turns out bot will not be needed.

Original change's description:
> Add new builder with enable_webrtc=false.
> 
> We want Chromium to build with enable_webrtc=false. I will initially
> add a build bot in chromium.webrtc.
> 
> Bug:  chromium:811678 
> Change-Id: If3f23a70f0102f5b65bb46e5e91eee3c0b1bbeb2
> Reviewed-on: https://chromium-review.googlesource.com/960125
> Commit-Queue: Patrik Höglund <phoglund@chromium.org>
> Reviewed-by: John Budorick <jbudorick@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#544013}

TBR=phoglund@chromium.org,jbudorick@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug:  chromium:811678 
Change-Id: I4a5321aac59bc2de99487c8036ba2724ef025b54
Reviewed-on: https://chromium-review.googlesource.com/972961
Reviewed-by: Patrik Höglund <phoglund@chromium.org>
Commit-Queue: Patrik Höglund <phoglund@chromium.org>
Cr-Commit-Position: refs/heads/master@{#545424}
[modify] https://crrev.com/3691fbc7bf5198ccd2a68fabdbd6bbc689549e36/testing/buildbot/chromium.webrtc.json
[modify] https://crrev.com/3691fbc7bf5198ccd2a68fabdbd6bbc689549e36/testing/buildbot/waterfalls.pyl
[modify] https://crrev.com/3691fbc7bf5198ccd2a68fabdbd6bbc689549e36/tools/mb/mb_config.pyl