Throw exceptions for invalid number of channels for ConvolverNode

Throw exceptions for invalid number of channels for ConvolverNode

The ConvolverNode only supports 1, 2 or 4 channels and must throw an
exception for any other number of channels.

BUG=563379
TEST=convolver-channels.html

Committed: https://crrev.com/0cc26bbb7175aec77910d0b47faf9f8c8a640fe5
Cr-Commit-Position: refs/heads/master@{#363024}

[Raymond Toy, 2015-12-03 16:44:45]

rtoy@chromium.org changed reviewers:
+ hongchan@chromium.org

[Raymond Toy, 2015-12-03 16:44:45]

PTAL.

[hongchan, 2015-12-03 18:07:17]

lgtm

[Raymond Toy, 2015-12-03 18:45:39]

The CQ bit was checked by rtoy@chromium.org

[commit-bot: I haz the power, 2015-12-03 18:46:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1497803002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1497803002/1

[commit-bot: I haz the power, 2015-12-03 18:55:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-03 18:57:09]

Description was changed from

==========
Throw exceptions for invalid number of channels for ConvolverNode

The ConvolverNode only supports 1, 2 or 4 channels and must throw an
exception for any other number of channels.

BUG=563379
TEST=convolver-channels.html
==========

to

==========
Throw exceptions for invalid number of channels for ConvolverNode

The ConvolverNode only supports 1, 2 or 4 channels and must throw an
exception for any other number of channels.

BUG=563379
TEST=convolver-channels.html

Committed: https://crrev.com/0cc26bbb7175aec77910d0b47faf9f8c8a640fe5
Cr-Commit-Position: refs/heads/master@{#363024}
==========

[commit-bot: I haz the power, 2015-12-03 18:57:10]

Patchset 1 (id:??) landed as
https://crrev.com/0cc26bbb7175aec77910d0b47faf9f8c8a640fe5
Cr-Commit-Position: refs/heads/master@{#363024}