IDL dictionary: Throw a TypeError when an interface member conversion fails

IDL dictionary: Throw a TypeError when an interface member conversion fails

The spec says that a type error should be thrown when a dictionary
member conversion for interface types fails[1]. We don't throw a type
error for null (even when the member is not nullable) because in our
implementation side, both null and undefined are treated as
"not specified".

[1] http://heycam.github.io/webidl/#es-interface

BUG=321462
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=186747

[bashi, 2014-12-08 23:42:37]

bashi@chromium.org changed reviewers:
+ haraken@chromium.org, jl@opera.com

[bashi, 2014-12-08 23:42:38]

PTAL?

[haraken, 2014-12-08 23:47:53]

LGTM

[bashi, 2014-12-08 23:49:26]

On 2014/12/08 23:47:53, haraken wrote:
> LGTM

Thanks!

[bashi, 2014-12-08 23:49:28]

The CQ bit was checked by bashi@chromium.org

[commit-bot: I haz the power, 2014-12-08 23:50:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/767313003/20001

[commit-bot: I haz the power, 2014-12-09 01:22:47]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=186747