Adjust ArrayBufferAllocator to accept a size when freeing the buffer.
Adjust ArrayBufferAllocator to accept a size when freeing the buffer.

This is necessary in order to support work to move the buffers into their own
partition, which is a useful security tweak.

The old Free() signature will be removed after we update V8. We're briefly in
an interim state due to a 3-legged land.

BUG=267094
R=abarth@chromium.org, haraken@chromium.org

Review URL: https://codereview.chromium.org/20501006

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@155375 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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