Revert of Check that usage isn't empty when generateKey() is called

content/child/webcrypto/test/ecdsa_unittest.cc

Index: content/child/webcrypto/test/ecdsa_unittest.cc
diff --git a/content/child/webcrypto/test/ecdsa_unittest.cc b/content/child/webcrypto/test/ecdsa_unittest.cc
index dc90cfcb98663ab7f4f09cd5e59b8cbc7ef842db..0ffbb8823a65c27d1415af1d2c83f198f71bc118 100644
--- a/content/child/webcrypto/test/ecdsa_unittest.cc
+++ b/content/child/webcrypto/test/ecdsa_unittest.cc
@@ -85,9 +85,8 @@
     blink::WebCryptoKey private_key;
 
     ASSERT_EQ(Status::Success(),
-              GenerateKeyPair(CreateEcdsaKeyGenAlgorithm(named_curve), true,
-                              blink::WebCryptoKeyUsageSign, &public_key,
-                              &private_key));
+              GenerateKeyPair(CreateEcdsaKeyGenAlgorithm(named_curve), true, 0,
+                              &public_key, &private_key));
 
     // Basic sanity checks on the generated key pair.
     EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key.type());
@@ -109,18 +108,6 @@
   // Ensure all entries in the key sample set are unique. This is a simplistic
   // estimate of whether the generated keys appear random.
   EXPECT_FALSE(CopiesExist(serialized_keys));
-}
-
-TEST(WebCryptoEcdsaTest, GenerateKeyEmptyUsage) {
-  if (!SupportsEcdsa())
-    return;
-
-  blink::WebCryptoNamedCurve named_curve = blink::WebCryptoNamedCurveP256;
-  blink::WebCryptoKey public_key;
-  blink::WebCryptoKey private_key;
-  ASSERT_EQ(Status::ErrorCreateKeyEmptyUsages(),
-            GenerateKeyPair(CreateEcdsaKeyGenAlgorithm(named_curve), true, 0,
-                            &public_key, &private_key));
 }
 
 // Verify that ECDSA signatures are probabilistic. Signing the same message two