Disable CHROMIUM_bind_uniform_location due to a spec bug

Disable CHROMIUM_bind_uniform_location due to a spec bug

Bound uniforms that are optimized away causes GL errors
when they are used.

The bound location becomes unused if its bound uniform is
optimized away. Updating the inactive uniform using the 
bound location causes a GL error from the command buffer.

Alternatively, command buffer may bind another free, unbound
uniform to the bound location. This causes the uniform update to
update the wrong uniform.

Disable the extension until the spec can be clarified and the
implementation fixed, if possible and needed.

BUG=skia:4454
Committed: https://skia.googlesource.com/skia/+/177519e5be598a54a07b8939328e8b86c8c83748

[Kimmo Kinnunen, 2015-10-28 07:55:18]

kkinnunen@nvidia.com changed reviewers:
+ bsalomon@google.com

[Kimmo Kinnunen, 2015-10-28 07:58:27]

Description was changed from

==========
Disable CHROMIUM_bind_uniform_location due to a spec bug

Binding uniforms that are optimized away causes GL errors
when they are used.

The bound location becomes empty (or worse, a free uniform is assigned
to the location). When updating the non-existing uniform with the bound
location, the command buffer gives an error.

Disable the use until the spec can be clarified and the implementation
fixed, if possible and needed.

BUG=skia:4454
==========

to

==========
Disable CHROMIUM_bind_uniform_location due to a spec bug

Bound uniforms that are optimized away causes GL errors
when they are used.

The bound location becomes empty. When updating the non-existing 
uniform with the bound location, the command buffer gives an 
error. Alternatively, command buffer may bind another free, unbound
uniform to the bound location. This causes the uniform update to
update the wrong uniform.

Disable the extension until the spec can be clarified and the
implementation fixed, if possible and needed.

BUG=skia:4454
==========

[Kimmo Kinnunen, 2015-10-28 08:01:03]

Description was changed from

==========
Disable CHROMIUM_bind_uniform_location due to a spec bug

Bound uniforms that are optimized away causes GL errors
when they are used.

The bound location becomes empty. When updating the non-existing 
uniform with the bound location, the command buffer gives an 
error. Alternatively, command buffer may bind another free, unbound
uniform to the bound location. This causes the uniform update to
update the wrong uniform.

Disable the extension until the spec can be clarified and the
implementation fixed, if possible and needed.

BUG=skia:4454
==========

to

==========
Disable CHROMIUM_bind_uniform_location due to a spec bug

Bound uniforms that are optimized away causes GL errors
when they are used.

The bound location becomes unused if its bound uniform is
optimized away. Updating the inactive uniform using the 
bound location causes a GL error from the command buffer.

Alternatively, command buffer may bind another free, unbound
uniform to the bound location. This causes the uniform update to
update the wrong uniform.

Disable the extension until the spec can be clarified and the
implementation fixed, if possible and needed.

BUG=skia:4454
==========

[bsalomon, 2015-10-28 13:01:12]

lgtm

[Kimmo Kinnunen, 2015-10-28 13:07:40]

The CQ bit was checked by kkinnunen@nvidia.com

[commit-bot: I haz the power, 2015-10-28 13:07:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1417633008/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1417633008/1

[commit-bot: I haz the power, 2015-10-28 13:18:41]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/177519e5be598a54a07b8939328e8b86c8c83748