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…rect. r=sotaro Previously, it was possible for a tile that had a valid scroll root to have an empty valid (and dirty) rect due to the picture cache clip rect, in some situations. This could result in the tile not being tagged as off-screen, which means it is added to the queue of tiles to be updated. On most platforms this is benign, but the BeginDraw method of DirectComposition fails if the dirty rect is empty. This patch fixes the logic so that tiles that meet these conditions are correctly tagged as not visible, and skipped from update queue. Differential Revision: https://phabricator.services.mozilla.com/D70616 [ghsync] From https://hg.mozilla.org/mozilla-central/rev/73632227ba00df584e8f6fcc1191e6dfa13fc5fd
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@bors-servo r=auto |
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moz-gfx commentedApr 13, 2020
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