Drop [LegacyInterfaceTypeChecking] for EventTarget's dispatchEvent()

Drop [LegacyInterfaceTypeChecking] for EventTarget's dispatchEvent()

This changes the exception for InvalidStateError to TypeError, which is
per spec and what Gecko does. IE and Safari throw a generic Error.

BUG=561338
Committed: https://crrev.com/57c5a84238b284bfcc9544de613daa869d1327ca
Cr-Commit-Position: refs/heads/master@{#362153}

[philipj_slow, 2015-11-27 13:18:54]

The CQ bit was checked by philipj@opera.com to run a CQ dry run

[commit-bot: I haz the power, 2015-11-27 13:19:18]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1479063003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1479063003/20001

[philipj_slow, 2015-11-27 13:32:58]

philipj@opera.com changed reviewers:
+ mkwst@chromium.org

[philipj_slow, 2015-11-27 13:32:59]

Minor cleanup, PTAL.

[commit-bot: I haz the power, 2015-11-27 14:33:57]

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

[commit-bot: I haz the power, 2015-11-27 14:33:57]

Dry run: This issue passed the CQ dry run.

[Mike West, 2015-11-30 14:00:40]

LGTM! Sorry I missed this on Friday. :/

[philipj_slow, 2015-11-30 16:18:35]

The CQ bit was checked by philipj@opera.com

[philipj_slow, 2015-11-30 16:19:00]

On 2015/11/30 14:00:40, Mike West wrote:
> LGTM! Sorry I missed this on Friday. :/

No worries, thanks for the review!

[commit-bot: I haz the power, 2015-11-30 16:19:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1479063003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1479063003/20001

[commit-bot: I haz the power, 2015-11-30 17:38:17]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-30 17:39:37]

Description was changed from

==========
Drop [LegacyInterfaceTypeChecking] for EventTarget's dispatchEvent()

This changes the exception for InvalidStateError to TypeError, which is
per spec and what Gecko does. IE and Safari throw a generic Error.

BUG=561338
==========

to

==========
Drop [LegacyInterfaceTypeChecking] for EventTarget's dispatchEvent()

This changes the exception for InvalidStateError to TypeError, which is
per spec and what Gecko does. IE and Safari throw a generic Error.

BUG=561338

Committed: https://crrev.com/57c5a84238b284bfcc9544de613daa869d1327ca
Cr-Commit-Position: refs/heads/master@{#362153}
==========

[commit-bot: I haz the power, 2015-11-30 17:39:38]

Patchset 2 (id:??) landed as
https://crrev.com/57c5a84238b284bfcc9544de613daa869d1327ca
Cr-Commit-Position: refs/heads/master@{#362153}