Prevent creation of gpu channels with no GPU on x86-64 windows

Prevent creation of gpu channels with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created even when the browser can't use the GPU (for use with swiftshader). However, this seems to be causing renderer hangs on x86-64 windows, so disable it there. Swiftshader currently doesn't work on x86-64 anyway, so it won't affect functionality.

BUG=577127
Committed: https://crrev.com/25c4ff976aa6b53c29832d0615e40511fc60fdab
Cr-Commit-Position: refs/heads/master@{#371040}

[jbauman, 2016-01-22 19:51:23]

jbauman@chromium.org changed reviewers:
+ piman@chromium.org

[jbauman, 2016-01-22 19:51:24]

This is a hack, but probably nice to have some sort of workaround for the
dev/beta releases.

[jbauman, 2016-01-22 19:51:44]

Description was changed from

==========
Prevent creation of contexts with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created
even when the browser can't use the GPU (for use with swiftshader). However,
this seems to be causing renderer hangs on x86-64 windows, so disable it there.
Swiftshader currently doesn't work on x86-64 anyway, so it won't affect
functionality.


BUG=577127
==========

to

==========
Prevent creation of gpu channels with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created
even when the browser can't use the GPU (for use with swiftshader). However,
this seems to be causing renderer hangs on x86-64 windows, so disable it there.
Swiftshader currently doesn't work on x86-64 anyway, so it won't affect
functionality.


BUG=577127
==========

[piman, 2016-01-22 20:29:16]

lgtm

[jbauman, 2016-01-22 20:30:49]

The CQ bit was checked by jbauman@chromium.org

[commit-bot: I haz the power, 2016-01-22 20:33:19]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1624633002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1624633002/1

[commit-bot: I haz the power, 2016-01-22 21:10:55]

Description was changed from

==========
Prevent creation of gpu channels with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created
even when the browser can't use the GPU (for use with swiftshader). However,
this seems to be causing renderer hangs on x86-64 windows, so disable it there.
Swiftshader currently doesn't work on x86-64 anyway, so it won't affect
functionality.


BUG=577127
==========

to

==========
Prevent creation of gpu channels with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created
even when the browser can't use the GPU (for use with swiftshader). However,
this seems to be causing renderer hangs on x86-64 windows, so disable it there.
Swiftshader currently doesn't work on x86-64 anyway, so it won't affect
functionality.


BUG=577127
==========

[commit-bot: I haz the power, 2016-01-22 21:10:56]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-22 21:13:02]

Description was changed from

==========
Prevent creation of gpu channels with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created
even when the browser can't use the GPU (for use with swiftshader). However,
this seems to be causing renderer hangs on x86-64 windows, so disable it there.
Swiftshader currently doesn't work on x86-64 anyway, so it won't affect
functionality.


BUG=577127
==========

to

==========
Prevent creation of gpu channels with no GPU on x86-64 windows

https://codereview.chromium.org/1575293002 allowed GPU contexts to be created
even when the browser can't use the GPU (for use with swiftshader). However,
this seems to be causing renderer hangs on x86-64 windows, so disable it there.
Swiftshader currently doesn't work on x86-64 anyway, so it won't affect
functionality.

BUG=577127

Committed: https://crrev.com/25c4ff976aa6b53c29832d0615e40511fc60fdab
Cr-Commit-Position: refs/heads/master@{#371040}
==========

[commit-bot: I haz the power, 2016-01-22 21:13:03]

Patchset 1 (id:??) landed as
https://crrev.com/25c4ff976aa6b53c29832d0615e40511fc60fdab
Cr-Commit-Position: refs/heads/master@{#371040}