[webkit-reviews] review requested: [Bug 133471] Prepopulated tiles may never be unparented from TileGrids with aggressive tile retention on : [Attachment 232419] patch

[bugzilla-daemon at webkit.org]

Tim Horton <thorton at apple.com> has asked  for review:
Bug 133471: Prepopulated tiles may never be unparented from TileGrids with
aggressive tile retention on
https://bugs.webkit.org/show_bug.cgi?id=133471

Attachment 232419: patch
https://bugs.webkit.org/attachment.cgi?id=232419&action=review