Move IdlType.may_raise_exception_on_conversion to v8_types.py

Move IdlType.may_raise_exception_on_conversion to v8_types.py

Also rename it v8_conversion_needs_exception_state, which is exactly what
it means.  The old name is somewhat misleading, since other conversions
can typically also raise exceptions in practice; the difference is whether
the conversion function does so via (and thus expects) an ExceptionState
argument.

Defining it in v8_types.py makes sense since this is a property of the
V8 bindings layer's conversion API for the type, not of the type itself.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=181669

[Jens Widell, 2014-09-09 13:44:03]

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

[Jens Widell, 2014-09-09 13:44:04]

PTAL

[haraken, 2014-09-09 14:16:49]

LGTM

[Jens Widell, 2014-09-09 14:27:33]

The CQ bit was checked by jl@opera.com

[commit-bot: I haz the power, 2014-09-09 14:28:25]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jl@opera.com/556893002/1

[commit-bot: I haz the power, 2014-09-09 16:25:14]

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

[commit-bot: I haz the power, 2014-09-09 16:25:16]

Try jobs failed on following builders:
  win_blink_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/win_blink_rel/builds/26242)

[Jens Widell, 2014-09-09 19:19:39]

The CQ bit was checked by jl@opera.com

[commit-bot: I haz the power, 2014-09-09 19:20:45]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jl@opera.com/556893002/1

[commit-bot: I haz the power, 2014-09-09 20:08:02]

Committed patchset #1 (id:1) as 181669