[webkit-reviews] review requested: [Bug 89439] [Forms] Make step action of SpinButtonElement replaceable : [Attachment 148722] Patch 4

[bugzilla-daemon at webkit.org]

yosin at chromium.org has asked  for review:
Bug 89439: [Forms] Make step action of SpinButtonElement replaceable
https://bugs.webkit.org/show_bug.cgi?id=89439

Attachment 148722: Patch 4
https://bugs.webkit.org/attachment.cgi?id=148722&action=review

------- Additional Comments from yosin at chromium.org
Could you review this patch?
Thanks in advance.

== Changes since last review ==
* Don't move InputType::stepUpFromRenderer => No changes in InputType.{cpp,h}
in this patch.
* Introduce SpinButtonElement::doStepAction
* Added comment for owner of SpinButtonElement must call removeActionHandler.