Fix clang compile failure due to -fsanitize-coverage=1
Fix clang compile failure due to -fsanitize-coverage=1

Took options from GN's flag value.

TBR=hans
BUG=589841

Review URL: https://codereview.chromium.org/1729723006

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#377680}

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