[WebCrypto] Throw syntaxError if keyUsage is empty in ImportKey

content/child/webcrypto/test/aes_cbc_unittest.cc

Index: content/child/webcrypto/test/aes_cbc_unittest.cc
diff --git a/content/child/webcrypto/test/aes_cbc_unittest.cc b/content/child/webcrypto/test/aes_cbc_unittest.cc
index 59d4882466246c862579a2d40827a8606dfeaef7..9d1fa6ac012e7715a87cd546b6f407d8180f9328 100644
--- a/content/child/webcrypto/test/aes_cbc_unittest.cc
+++ b/content/child/webcrypto/test/aes_cbc_unittest.cc
@@ -195,10 +195,19 @@ TEST(WebCryptoAesCbcTest, GenerateKeyBadLength) {
     SCOPED_TRACE(i);
     EXPECT_EQ(Status::ErrorGenerateAesKeyLength(),
               GenerateSecretKey(CreateAesCbcKeyGenAlgorithm(kKeyLen[i]), true,
-                                0, &key));
+                                blink::WebCryptoKeyUsageEncrypt, &key));
   }
 }
 
+TEST(WebCryptoAesCbcTest, ImportKeyEmptyUsage) {
+  blink::WebCryptoKey key;
+  ASSERT_EQ(Status::ErrorCreateKeyEmptyUsages(),
+            ImportKey(blink::WebCryptoKeyFormatRaw,
+                      CryptoData(std::vector<uint8_t>(16)),
+                      CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
+                      true, 0, &key));
+}
+
 // If key_ops is specified but empty, no key usages are allowed for the key.
 TEST(WebCryptoAesCbcTest, ImportKeyJwkEmptyKeyOps) {
   blink::WebCryptoKey key;
@@ -208,13 +217,6 @@ TEST(WebCryptoAesCbcTest, ImportKeyJwkEmptyKeyOps) {
   dict.SetString("k", "GADWrMRHwQfoNaXU5fZvTg");
   dict.Set("key_ops", new base::ListValue);  // Takes ownership.
 
-  EXPECT_EQ(Status::Success(),
-            ImportKeyJwkFromDict(
-                dict, CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc), false,
-                0, &key));
-
-  EXPECT_EQ(0, key.usages());
-
   // The JWK does not contain encrypt usages.
   EXPECT_EQ(Status::ErrorJwkKeyopsInconsistent(),
             ImportKeyJwkFromDict(
@@ -533,8 +535,8 @@ TEST(WebCryptoAesCbcTest, WrapUnwrapRoundtripSpkiPkcs8) {
   ASSERT_EQ(
       Status::Success(),
       UnwrapKey(blink::WebCryptoKeyFormatSpki, CryptoData(wrapped_public_key),
-                wrapping_key, wrap_algorithm, rsa_import_algorithm, true, 0,
-                &unwrapped_public_key));
+                wrapping_key, wrap_algorithm, rsa_import_algorithm, true,
+                blink::WebCryptoKeyUsageVerify, &unwrapped_public_key));
 
   blink::WebCryptoKey unwrapped_private_key;