[webkit-reviews] review requested: [Bug 104764] Handling autoscroll in EventHandler should be re-factor : [Attachment 179224] Patch 6

[bugzilla-daemon at webkit.org]

yosin at chromium.org has asked  for review:
Bug 104764: Handling autoscroll in EventHandler should be re-factor
https://bugs.webkit.org/show_bug.cgi?id=104764

Attachment 179224: Patch 6
https://bugs.webkit.org/attachment.cgi?id=179224&action=review

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

= Changes since the last review =
* In EventHandler, use OwnPtr for AutoscrollController instead of containment.
* Introduce didPanScrollStart/didPanScrollTop not to exposure
AutoscrollControll.