[gn] Switch arm64 bots to gn

[gn] Switch arm64 bots to gn

BUG=chromium:474921
NOTRY=true

Committed: https://crrev.com/0bb05780b3ac4d5f0d917328e98ce9299225d262
Cr-Commit-Position: refs/heads/master@{#38082}

[Michael Achenbach, 2016-07-27 07:28:33]

machenbach@chromium.org changed reviewers:
+ jochen@chromium.org, vogelheim@chromium.org

[Michael Achenbach, 2016-07-27 07:28:33]

PTAL.

I'm not seeing any red flags here. Comparison links:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%...

https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%...


Similar to arm (the condition below), we now enter this condition:
https://cs.chromium.org/chromium/src/build/config/compiler/BUILD.gn?q=%22-mss...

That leads to the additional
-march=x86-64

[Michael Achenbach, 2016-07-27 07:28:42]

Description was changed from

==========
[gn] Switch arm64 bots to gn

BUG=
==========

to

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
==========

[Michael Achenbach, 2016-07-27 07:28:57]

Description was changed from

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
==========

to

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
NOTRY=true
==========

[vogelheim, 2016-07-27 07:46:47]

lgtm

[jochen (gone - plz use gerrit), 2016-07-27 07:58:31]

lgtm

[Michael Achenbach, 2016-07-27 08:04:41]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2016-07-27 08:04:47]

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, 2016-07-27 08:06:24]

Description was changed from

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
NOTRY=true
==========

to

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
NOTRY=true
==========

[commit-bot: I haz the power, 2016-07-27 08:06:25]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-07-27 08:21:11]

Description was changed from

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
NOTRY=true
==========

to

==========
[gn] Switch arm64 bots to gn

BUG=chromium:474921
NOTRY=true

Committed: https://crrev.com/0bb05780b3ac4d5f0d917328e98ce9299225d262
Cr-Commit-Position: refs/heads/master@{#38082}
==========

[commit-bot: I haz the power, 2016-07-27 08:21:12]

Patchset 2 (id:??) landed as
https://crrev.com/0bb05780b3ac4d5f0d917328e98ce9299225d262
Cr-Commit-Position: refs/heads/master@{#38082}