| Index: build/config/BUILD.gn
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| diff --git a/build/config/BUILD.gn b/build/config/BUILD.gn
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| index 7a91e21e326eec7907388980cf1b1682bbbcbadc..0140e867f51166e76bb5143f65ca0d0782945f5c 100644
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| --- a/build/config/BUILD.gn
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| +++ b/build/config/BUILD.gn
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| @@ -126,10 +126,13 @@ config("feature_flags") {
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|        defines += [ "USE_OPENSSL_CERTS=1" ]
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|      }
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|    } else if (use_nss_certs) {
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| -    # USE_NSS really means "use nss for certificate validation and storage"
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| -    # (like USE_OPENSSL_CERTS) and not "we're linking to NSS." It might be nice
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| -    # to rename this but we're hoping to transition away from NSS.
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| -    defines += [ "USE_NSS=1" ]
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| +    defines += [
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| +      "USE_NSS_CERTS=1",
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| +
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| +      # TODO(davidben): USE_NSS is a deprecated alias for USE_NSS_CERTS and will
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| +      # be removed. See https://crbug.com/462040.
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| +      "USE_NSS=1",
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| +    ]
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|    }
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|    if (use_ozone) {
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|      defines += [ "USE_OZONE=1" ]
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| 
 |