bump chromium version and disable use_sysroot

Bump chromium version and disable use_sysroot=0

TBR=harryjin@google.com
BUG=libyuv:534
Committed: https://chromium.googlesource.com/libyuv/libyuv/+/be984a8b9a130671c098920600ffb44cbb559340

[fbarchard, 2015-12-15 19:50:40]

Description was changed from

==========
bump chromium version and disable use_sysroot

R=harryjin@google.com
BUG=libyuv:534
==========

to

==========
Bump chromium version and disable use_sysroot=0

TBR=harryjin@google.com
BUG=libyuv:534
==========

[fbarchard1, 2015-12-15 20:05:36]

Description was changed from

==========
Bump chromium version and disable use_sysroot=0

TBR=harryjin@google.com
BUG=libyuv:534
==========

to

==========
Bump chromium version and disable use_sysroot=0

TBR=harryjin@google.com
BUG=libyuv:534

Committed:
https://chromium.googlesource.com/libyuv/libyuv/+/be984a8b9a130671c098920600f...
==========

[fbarchard1, 2015-12-15 20:05:37]

Committed patchset #1 (id:1) manually as
be984a8b9a130671c098920600ffb44cbb559340 (presubmit successful).

[Sam Clegg, 2016-01-06 18:37:34]

sbc@chromium.org changed reviewers:
+ sbc@chromium.org

[Sam Clegg, 2016-01-06 18:37:34]

https://codereview.chromium.org/1526163002/diff/1/libyuv.gyp
File libyuv.gyp (right):

https://codereview.chromium.org/1526163002/diff/1/libyuv.gyp#newcode24
libyuv.gyp:24: 'use_sysroot': 0,
I think this broke the Linux ARM builder, where sysroot is required to be used:
https://build.chromium.org/p/chromium.fyi/builders/Linux%20ARM

Can you tell my why this change was needed?   Is udev actually used by libyuv?

[Sam Clegg, 2016-01-06 18:41:07]

On 2016/01/06 18:37:34, Sam Clegg wrote:
> https://codereview.chromium.org/1526163002/diff/1/libyuv.gyp
> File libyuv.gyp (right):
> 
> https://codereview.chromium.org/1526163002/diff/1/libyuv.gyp#newcode24
> libyuv.gyp:24: 'use_sysroot': 0,
> I think this broke the Linux ARM builder, where sysroot is required to be
used:
> https://build.chromium.org/p/chromium.fyi/builders/Linux%20ARM
> 
> Can you tell my why this change was needed?   Is udev actually used by libyuv?

Ah I just saw the bug information in
http://code.google.com/p/libyuv/issues/detail?id=534

The problem actually looks different.  Its not that the sysroot is missing
anything, its that the builders in question are missing the sysroot itself. 
This is normally setup by gclient runhooks in chromium.

[kjellander_chromium, 2016-01-11 20:36:02]

kjellander@chromium.org changed reviewers:
+ kjellander@chromium.org

[kjellander_chromium, 2016-01-11 20:36:03]

https://codereview.chromium.org/1526163002/diff/1/libyuv.gyp
File libyuv.gyp (right):

https://codereview.chromium.org/1526163002/diff/1/libyuv.gyp#newcode24
libyuv.gyp:24: 'use_sysroot': 0,
On 2016/01/06 18:37:34, Sam Clegg wrote:
> I think this broke the Linux ARM builder, where sysroot is required to be
used:
> https://build.chromium.org/p/chromium.fyi/builders/Linux%20ARM
> 
> Can you tell my why this change was needed?   Is udev actually used by libyuv?
 

Frank was making this change with the assumption that it was needed because
WebRTC was hitting problems with libudev being missing when using sysroots. It's
not used by libyuv so libyuv should be able to use sysroots.

For libyuv, this setting could go into a supplement.gypi file instead, as we do
in WebRTC. Then it won't affect downstream. Just make sure to put it into a
subdirectory, like 'source' or 'util' in this case.
That said, I think it's better to enable the sysroot again. But for the runhooks
step to execute you must then either roll chromium_revision (it only runs as
part of when
https://chromium.googlesource.com/libyuv/libyuv/+/master/sync_chromium.py runs),
or increment the SCRIPT_VERSION number in that file.