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This is a reland of 0ff2da3a

Original change's description:
> Disable -Wdeprecated-copy with tip-of-tree Clang
>
> while we figure out how to handle this new warning.
>
> TBR=rnk
>
> Bug: 1028110
> Change-Id: I88be5c763bd0f2fcb40ebecc20990f96853d70c2
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1932804
> Reviewed-by: Hans Wennborg <hans@chromium.org>
> Commit-Queue: Hans Wennborg <hans@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#718651}

TBR=rnk

Bug: 1028110
Change-Id: Iaac6251551d0ae5089da8eb465c57111b48bba9b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1940181
Commit-Queue: Hans Wennborg <hans@chromium.org>
Reviewed-by: Hans Wennborg <hans@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719927}