Revert of Revert of Switch asan_coverage(deprecated) flag to sanitizer_coverage in ipc fuzzer. (patchset #1 id:1 of https://codereview.chromium.org/958163002/)
Revert of Revert of Switch asan_coverage(deprecated) flag to sanitizer_coverage in ipc fuzzer. (patchset #1 id:1 of https://codereview.chromium.org/958163002/)

Reason for revert:
Not the reason for MSAN, UBSAN bot breakage. We need to fix unused param error till the next clang roll happens.

Original issue's description:
> Revert of Switch asan_coverage(deprecated) flag to sanitizer_coverage in ipc fuzzer. (patchset #1 id:1 of https://codereview.chromium.org/949143004/)
>
> Reason for revert:
> I think this broke MSAN and UBsan builders on the LKGR waterfall.
>
> Original issue's description:
> > Switch asan_coverage(deprecated) flag to sanitizer_coverage in ipc fuzzer.
> >
> > BUG=450268
> > R=mbarbella@chromium.org
> >
> > Committed: https://chromium.googlesource.com/chromium/src/+/ef7aa83795e50c03bf05bbdaad3fdebbef8036b3
>
> TBR=tsepez@chromium.org,mbarbella@chromium.org,inferno@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=450268
>
> Committed: https://crrev.com/e12cbb00c900fe3406e24b5788f212317e6ece1d
> Cr-Commit-Position: refs/heads/master@{#318286}

TBR=tsepez@chromium.org,mbarbella@chromium.org,grt@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=450268

Review URL: https://codereview.chromium.org/958213005

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#318342}

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