DOMMatrix: add missing propagation of exceptions.

DOMMatrix: add missing propagation of exceptions.

R=
BUG=659899, 388780
Committed: https://crrev.com/9abf853349f70169c17607444ae977aad3a73114
Cr-Commit-Position: refs/heads/master@{#433449}

[sof, 2016-11-19 12:30:06]

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

[commit-bot: I haz the power, 2016-11-19 12:30:10]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[sof, 2016-11-19 12:32:14]

sigbjornf@opera.com changed reviewers:
+ dominicc@chromium.org, haraken@chromium.org

[sof, 2016-11-19 12:32:15]

please take a look.

[commit-bot: I haz the power, 2016-11-19 13:52:48]

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

[commit-bot: I haz the power, 2016-11-19 13:52:49]

Dry run: This issue passed the CQ dry run.

[haraken, 2016-11-20 01:18:10]

LGTM

[sof, 2016-11-20 06:25:42]

The CQ bit was checked by sigbjornf@opera.com

[commit-bot: I haz the power, 2016-11-20 06:25:49]

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, 2016-11-20 06:30:01]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479623142933040, "parent_rev":
["4a5d358a3c9d91260d4187c59273fc87961b1abf", null], "commit_rev":
["120741fe5d3a5671d149eef0e4a59d988c8968e5", null]}

[commit-bot: I haz the power, 2016-11-20 06:31:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-20 06:34:36]

Description was changed from

==========
DOMMatrix: add missing propagation of exceptions.

R=
BUG=659899,388780
==========

to

==========
DOMMatrix: add missing propagation of exceptions.

R=
BUG=659899,388780

Committed: https://crrev.com/9abf853349f70169c17607444ae977aad3a73114
Cr-Commit-Position: refs/heads/master@{#433449}
==========

[commit-bot: I haz the power, 2016-11-20 06:34:39]

Patchset 1 (id:??) landed as
https://crrev.com/9abf853349f70169c17607444ae977aad3a73114
Cr-Commit-Position: refs/heads/master@{#433449}