[Webkit-unassigned] [Bug 86483] LayerAnimation is not thread safe, which makes dereferencing an expensive operation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=86483





--- Comment #7 from Alexey Proskuryakov <ap at webkit.org>  2012-05-16 15:49:10 PST ---
> However, even if we don't touch any data of these objects, the refcount will still be mutated as we pass these objects around and from one thread to the other.

I think that you need to generously sprinkle ASSERT(isMainThread()) checks around this code to document and verify this requirement.

Not commenting on whether the performance hit of making these classes ThreadSafeRefCounted.

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