Remove code to block GPU channel creation with compositing disable on x64

Remove code to block GPU channel creation with compositing disable on x64

This was a hack to prevent unusual hangs in the GPU process. Now that the
SwiftShader component updater is completely disabled on x86-64, this
shouldn't be an issue.

BUG=577127
Committed: https://crrev.com/5b1e76e346a82ba506e0598f302838ebfdfc0680
Cr-Commit-Position: refs/heads/master@{#415503}

[jbauman, 2016-08-26 18:10:41]

The CQ bit was checked by jbauman@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-26 18:11:42]

Dry run: 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, 2016-08-26 19:15:07]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-08-26 19:15:08]

Dry run: This issue passed the CQ dry run.

[jbauman, 2016-08-30 20:37:48]

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

[piman, 2016-08-30 21:45:56]

LGTM, thanks a lot for the clean up!

[jbauman, 2016-08-30 21:50:46]

The CQ bit was checked by jbauman@chromium.org

[commit-bot: I haz the power, 2016-08-30 21:51:29]

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, 2016-08-31 00:00:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-31 00:03:02]

Description was changed from

==========
Remove code to block GPU channel creation with compositing disable on x64

This was a hack to prevent unusual hangs in the GPU process. Now that the
SwiftShader component updater is completely disabled on x86-64, this
shouldn't be an issue.

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

to

==========
Remove code to block GPU channel creation with compositing disable on x64

This was a hack to prevent unusual hangs in the GPU process. Now that the
SwiftShader component updater is completely disabled on x86-64, this
shouldn't be an issue.

BUG=577127

Committed: https://crrev.com/5b1e76e346a82ba506e0598f302838ebfdfc0680
Cr-Commit-Position: refs/heads/master@{#415503}
==========

[commit-bot: I haz the power, 2016-08-31 00:03:05]

Patchset 1 (id:??) landed as
https://crrev.com/5b1e76e346a82ba506e0598f302838ebfdfc0680
Cr-Commit-Position: refs/heads/master@{#415503}