[webkit-reviews] review requested: [Bug 32080] Make it possible to keep track of scrolls : [Attachment 44169] Make it possible to keep track of scrolls

[bugzilla-daemon at webkit.org]

Kenneth Rohde Christiansen <kenneth at webkit.org> has asked  for review:
Bug 32080: Make it possible to keep track of scrolls
https://bugs.webkit.org/show_bug.cgi?id=32080

Attachment 44169: Make it possible to keep track of scrolls
https://bugs.webkit.org/attachment.cgi?id=44169&action=review

------- Additional Comments from Kenneth Rohde Christiansen
<kenneth at webkit.org>
Some platforms may need to keep track of scrolls even if it requires full
repaint of the viewport. For instance, if we have a tiled backing store, we may
repaint the whole viewport, but we still need to move the tiles by the given
offset.

The implemented approach was discussed with David Hyatt on IRC.