[webkit-reviews] review requested: [Bug 30469] We should not bubble up events if we drag something to an iframe that has an invalid source : [Attachment 41531] Proposed Patch

[bugzilla-daemon at webkit.org]

Jian Li <jianli at chromium.org> has asked  for review:
Bug 30469: We should not bubble up events if we drag something to an iframe
that has an invalid source
https://bugs.webkit.org/show_bug.cgi?id=30469

Attachment 41531: Proposed Patch
https://bugs.webkit.org/attachment.cgi?id=41531&action=review

------- Additional Comments from Jian Li <jianli at chromium.org>
Added the test script to cover the case of valid source bubbling. Also
introduce a helper function to replace the similar code.