[webkit-reviews] review granted: [Bug 15129] adding a new line with DOM does unnecessary additional repaint : [Attachment 23380] Use the m_everHadLayout flag to suppress some unnecessary painting

[bugzilla-daemon at webkit.org]

Darin Adler <darin at apple.com> has granted mitz at webkit.org's request for review:
Bug 15129: adding a new line with DOM does unnecessary additional repaint
https://bugs.webkit.org/show_bug.cgi?id=15129

Attachment 23380: Use the m_everHadLayout flag to suppress some unnecessary
painting
https://bugs.webkit.org/attachment.cgi?id=23380&action=edit

------- Additional Comments from Darin Adler <darin at apple.com>
r=me

I don't understand why this patch changes layout test results.

I also wish we had a good mechanism for testing these kinds of changes that
didn't require comparing images to see if the test passes.