[Webkit-unassigned] [Bug 185837] Animated GIFs with a 90 degree X or Y rotation do not animate

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185837

--- Comment #3 from Said Abou-Hallawa <sabouhallawa at apple.com> ---
This happens because when the <img> element is drawn with perspective css, it is drawn to a layer by getting the current frame and setting its to the layer through GraphicsLayerCA::setContentsToImage().

Getting the current frame by calling BitmapImage::frameImageAtIndexCacheIfNeeded() forces sync image decoding and does start the animation timer for the next frame.

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