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Andreas Haas authored
In {EmptyBackingStore}, the {free_on_destruct} flag was not set as an optimization: Since there is no memory, it also does not have to be freed. However, this flag has a side-effect: any backing store where this flag is not set is considered {external}. The {external} flag is mis-used by blink to indicate if ArrayBuffers need to be wrapped or not. With this CL we set the {free_on_destruct} flag in {EmptyBackingStore}, but we change the ArrayBufferTracker to just ignore empty backing stores. R=ulan@chromium.org Bug: chromium:1008840 Change-Id: I1552a6e013c8b23f39fba1c2d9d9c61dc30c0c74 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1924263Reviewed-by:Ulan Degenbaev <ulan@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#65067}
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