Sync the Selection interface with the spec

Sync the Selection interface with the spec

http://w3c.github.io/selection-api/#idl-def-Selection

There are no changes to the generated code other than order and the
allowPartial -> allowPartialContainment renaming.

BUG=460722
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=196219

[philipj_slow, 2015-05-30 23:00:08]

philipj@opera.com changed reviewers:
+ jl@opera.com, yoichio@chromium.org

[philipj_slow, 2015-05-30 23:00:09]

yoichio@, are you OK with your name on these TODOs?

jl@, sanity-check?

[yoichio, 2015-06-01 02:22:04]

I'm OK about TODO(yoichio).

[Jens Widell, 2015-06-01 05:58:39]

LGTM

https://codereview.chromium.org/1159303003/diff/20001/Source/core/editing/Sel...
File Source/core/editing/Selection.idl (right):

https://codereview.chromium.org/1159303003/diff/20001/Source/core/editing/Sel...
Source/core/editing/Selection.idl:65: // TODO(philipj): The stringifier should
be enumerable.
See also https://codereview.chromium.org/345983004/.

[philipj_slow, 2015-06-01 10:39:34]

The CQ bit was checked by philipj@opera.com

[philipj_slow, 2015-06-01 10:39:35]

The patchset sent to the CQ was uploaded after l-g-t-m from jl@opera.com
Link to the patchset: https://codereview.chromium.org/1159303003/#ps40001
(title: "add review and spec bug for [NotEnumerable] toString()")

[commit-bot: I haz the power, 2015-06-01 10:39:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1159303003/40001

[commit-bot: I haz the power, 2015-06-01 12:19:11]

Committed patchset #3 (id:40001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=196219