Andreas Kling 53c9c6f3ee LibWeb: Make Agent's MutationObserver list weak ...

Before this change, Agent held on to all of the live MutationObserver
objects via GC::Root. This prevented them from ever getting
garbage-collected.

Instead of roots, we now use a simple IntrusiveList and remove them
from it in the finalizer for MutationObserver.

This fixes a massive GC leak on Speedometer.

2025-02-07 16:53:11 +01:00

8.1 KiB

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