Unship V8 custom Promise methods

Unship V8 custom Promise methods

The data from UseCounters are in--V8's custom Promise methods are not
in wide use on the web (<.002%). Therefore, this patch removes them.
That includes:
- Promise.prototype.chain
- Promise.defer -- the most widely used of the bunch
- Promise.accept

For now, those methods are still available by checking the "disable
latest stable JavaScript features" flag, or --promise-extra at the
command line, but I expect them to be fully removable.

R=adamk
CC=rossberg
BUG=v8:3238, v8:4633
Committed: https://crrev.com/fa160602a3b6703df1444d3bc463b60859b0f63e
Cr-Commit-Position: refs/heads/master@{#36152}

[Dan Ehrenberg, 2016-05-11 00:12:41]

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

[commit-bot: I haz the power, 2016-05-11 00:12:49]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1965183002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1965183002/1

[adamk, 2016-05-11 00:26:28]

lgtm

[Dan Ehrenberg, 2016-05-11 00:26:50]

The CQ bit was unchecked by littledan@chromium.org

[Dan Ehrenberg, 2016-05-11 00:32:39]

The CQ bit was checked by littledan@chromium.org

[Dan Ehrenberg, 2016-05-11 00:32:40]

The patchset sent to the CQ was uploaded after l-g-t-m from adamk@chromium.org
Link to the patchset: https://codereview.chromium.org/1965183002/#ps20001
(title: "Fix tests")

[commit-bot: I haz the power, 2016-05-11 00:32:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1965183002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1965183002/20001

[commit-bot: I haz the power, 2016-05-11 01:00:32]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-05-11 01:01:11]

Description was changed from

==========
Unship V8 custom Promise methods

The data from UseCounters are in--V8's custom Promise methods are not
in wide use on the web (<.002%). Therefore, this patch removes them.
That includes:
- Promise.prototype.chain
- Promise.defer -- the most widely used of the bunch
- Promise.accept

For now, those methods are still available by checking the "disable
latest stable JavaScript features" flag, or --promise-extra at the
command line, but I expect them to be fully removable.

R=adamk
CC=rossberg
BUG=v8:3238,v8:4633
==========

to

==========
Unship V8 custom Promise methods

The data from UseCounters are in--V8's custom Promise methods are not
in wide use on the web (<.002%). Therefore, this patch removes them.
That includes:
- Promise.prototype.chain
- Promise.defer -- the most widely used of the bunch
- Promise.accept

For now, those methods are still available by checking the "disable
latest stable JavaScript features" flag, or --promise-extra at the
command line, but I expect them to be fully removable.

R=adamk
CC=rossberg
BUG=v8:3238,v8:4633

Committed: https://crrev.com/fa160602a3b6703df1444d3bc463b60859b0f63e
Cr-Commit-Position: refs/heads/master@{#36152}
==========

[commit-bot: I haz the power, 2016-05-11 01:01:12]

Patchset 2 (id:??) landed as
https://crrev.com/fa160602a3b6703df1444d3bc463b60859b0f63e
Cr-Commit-Position: refs/heads/master@{#36152}