[Webkit-unassigned] [Bug 73920] [Qt] Tiled backing store failing to update view under certain conditions

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73920





--- Comment #9 from Lamarque V. Souza <Lamarque.Souza at basyskom.com>  2012-11-01 18:27:26 PST ---
I tried to find a solution that does not involve dropping all tiles but none of my attempts worked for all cases. I tried dropping only the tiles marked as dirty when loading a new page, but if I scroll down to the end of the new page there is a wrong tile there. I fail to see how the same tile can be used for different pages. That would work only if the tile is part of the pagen's background or the pages are very similar, but the current code does not detect that situation and only takes the coordinates into account, not the page's url. tiledBackingStoreContentsRect can eventually return the same size for two different pages, can't it?

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