[Webkit-unassigned] [Bug 106842] adding support for DiscardablePixelRef for caching lazily decoded images

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106842





--- Comment #46 from Hin-Chung Lam <hclam at google.com>  2013-01-25 11:30:02 PST ---
We discussed thoroughly offline about this patch.

We settled on the limitation of this patch, that is:

1. Fully decoded cache entries is unlocked and memory unpinned.
2. Partially decoded cache entries is not unlocked and memory stay pinned.

Because there is a separate memory limit and cache count limit, the memory usage by partially decoded cache entries will not go unbounded. It is safe to accept this patch with above limitations.

We agreed to work on a second iteration to complete the part for partially decoded cache entries.

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