[Webkit-unassigned] [Bug 95057] [chromium] Allow impl-thread deletion of only some resources

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=95057





--- Comment #10 from Christopher Cameron <ccameron at chromium.org>  2012-08-28 15:59:47 PST ---
(In reply to comment #9)
> Created an attachment (id=161077)
 --> (https://bugs.webkit.org/attachment.cgi?id=161077&action=review) [details]
> Patch

I've updated the patch.  The big change is that I moved all PTM state that can be accessed by multiple threads concurrently into a smaller sub-class.  I'm much happier with this scheme.

This sub-class will get a bit bigger when I give the main thread a way to inform it of the backings' priorities (or at least orderings) so that the impl thread can make informed asynchronous eviction decisions.

I also added roughly twelve thousand asserts of what-thread-can-call-what in the PTM, and then created big diffs in some tests to obey these requirements.

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