Annotate the CloseEvent interfaces with spec link

Annotate the CloseEvent interfaces with spec link

WebSocket already has a spec link. The idea is that each IDL file has
one spec link, which should make it easier to write a tool to compare
our IDL to the spec's IDL.

BUG=460722
NOTRY=true

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=198369

[philipj_slow, 2015-07-06 21:37:01]

philipj@opera.com changed reviewers:
+ tyoshino@chromium.org, yhirano@chromium.org

[philipj_slow, 2015-07-06 21:37:02]

PTAL, and apologies that this CL looks a bit silly on its own, trying to get
through all IDL files...

[yhirano, 2015-07-07 01:11:22]

lgtm

[tyoshino (SeeGerritForStatus), 2015-07-07 04:07:27]

lgtm

We're basically referring to the WHATWG HTML spec. So, removal of W3C one is
good.

[philipj_slow, 2015-07-07 07:57:23]

The CQ bit was checked by philipj@opera.com

[commit-bot: I haz the power, 2015-07-07 07:57:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1220363003/1

[commit-bot: I haz the power, 2015-07-07 08:02:15]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=198369