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The methods are deprecated and will be removed in V8 v8.1, thus we need
to stop overriding them in chromium.

R=rmcilroy@chromium.org
CC=ulan@chromium.org

Bug: v8:9810
Change-Id: I43d47c87c388a7c93ea87956b75f1db79d78fdb2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1871592Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708150}