[webkit-help] WebCore (chromium) dirty rect setting on GraphicsLayers

[varun shrivastava]

Hi,

     i am looking into chromium port of webkit, and looked at the source
related to accelerated compositing, but couldn't understand how the layers
are marked dirty if there bounds intersect the dirty rectangle received from
OS.

Can some help me understand how dirty rect is getting propagated to
GraphicsLayers.

-- Thanks
Varun
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