Fix incorrect error message for ScriptProcessorNode

Fix incorrect error message for ScriptProcessorNode

The value printed when the number of output channels exceeded the
maximum value was incorrectly printing the number of input channels.

The test correctly checked this, but the expected result was
incorrectly checking for the incorrect value.

BUG=645806
TEST=dom-exceptions.html updated expectations

Committed: https://crrev.com/5196ddbea6597d66d839cb25f7acee9855491bc0
Cr-Commit-Position: refs/heads/master@{#418071}

[Raymond Toy, 2016-09-12 18:25:03]

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

[Raymond Toy, 2016-09-12 18:25:03]

PTAL.

[hongchan, 2016-09-12 18:41:20]

lgtm

[Raymond Toy, 2016-09-12 20:27:59]

The CQ bit was checked by rtoy@chromium.org

[commit-bot: I haz the power, 2016-09-12 20:28:20]

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, 2016-09-12 22:05:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-12 22:07:10]

Description was changed from

==========
Fix incorrect error message for ScriptProcessorNode

The value printed when the number of output channels exceeded the
maximum value was incorrectly printing the number of input channels.

The test correctly checked this, but the expected result was
incorrectly checking for the incorrect value.

BUG=645806
TEST=dom-exceptions.html updated expectations
==========

to

==========
Fix incorrect error message for ScriptProcessorNode

The value printed when the number of output channels exceeded the
maximum value was incorrectly printing the number of input channels.

The test correctly checked this, but the expected result was
incorrectly checking for the incorrect value.

BUG=645806
TEST=dom-exceptions.html updated expectations

Committed: https://crrev.com/5196ddbea6597d66d839cb25f7acee9855491bc0
Cr-Commit-Position: refs/heads/master@{#418071}
==========

[commit-bot: I haz the power, 2016-09-12 22:07:11]

Patchset 1 (id:??) landed as
https://crrev.com/5196ddbea6597d66d839cb25f7acee9855491bc0
Cr-Commit-Position: refs/heads/master@{#418071}