Repaint issues in background tabs after r138858
https://bugs.webkit.org/show_bug.cgi?id=108092
<rdar://problem/13076430>
Reviewed by Tim Horton.
In r138858, we unparented all tiles in the tile caches of background tabs.
That broke repaints in background tabs; when bringing that tab back to the
foreground, we would call -setNeedsDisplayInRect:, and then reparent the tiles
on a zero-delay timer. Those repaints would then be flipped (possibly because
CA can't look up the layer tree to check for flipped geometry).
Fix by revalidating tiles (which reparents the tiles) at the time we're told
we're moving into the window, which happens before repaints are flushed.
* platform/graphics/ca/mac/TileCache.mm:
(WebCore::TileCache::setIsInWindow):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@140984 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2 files changed
