[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 #2 from Christopher Cameron <ccameron at chromium.org>  2012-08-27 01:41:42 PST ---
Towards allowing the impl thread to delete just some resources (as opposed to deleting all resources).

Do impl-thread deletion through CCPrioritizedTextureManager instead of CCResourceProvider. In subsequent changes the impl thread will be able to set a threshold for what to delete). Add a mutex to protect the state shared between the two threads. Add a set of textures that have been deleted by the impl thread, but have not had their related structures clear by the main thread yet.

Allow multiple in-flight texture purges. In CCThreadProxy, make the acknowledgement of texture deletion be an integer counter instead of a bool, because we may have multiple in-flight purges. Remove many instances where texture purges were avoided when there was already an outstanding purge.

Add the ability to clear only the references to deleted textures from the texture upload queue.

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