[WebCrypto] Throw syntaxError if keyUsage is empty in ImportKey

content/child/webcrypto/test/hmac_unittest.cc

Index: content/child/webcrypto/test/hmac_unittest.cc
diff --git a/content/child/webcrypto/test/hmac_unittest.cc b/content/child/webcrypto/test/hmac_unittest.cc
index 61fc5dc2fad0c45cecedb15d49b7b4537f226536..6bcba414642e91c35d1952118068c68e0b72942e 100644
--- a/content/child/webcrypto/test/hmac_unittest.cc
+++ b/content/child/webcrypto/test/hmac_unittest.cc
@@ -425,11 +425,6 @@ TEST(WebCryptoHmacTest, ImportExportJwk) {
   ImportExportJwkSymmetricKey(
       512, CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha512),
       blink::WebCryptoKeyUsageVerify, "HS512");
-
-  // Zero usage value
-  ImportExportJwkSymmetricKey(
-      512, CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha512), 0,
-      "HS512");
 }
 
 TEST(WebCryptoHmacTest, ExportJwkEmptyKey) {
@@ -480,6 +475,17 @@ TEST(WebCryptoHmacTest, ImportRawKeyTooLarge) {
                 true, blink::WebCryptoKeyUsageSign, &key));
 }
 
+TEST(WebCryptoHmacTest, ImportKeyEmptyUsage) {
+  blink::WebCryptoKey key;
+  std::string key_raw_hex_in = "025a8cf3f08b4f6c5f33bbc76a471939";
+  EXPECT_EQ(
+      Status::ErrorImportKeyEmptyUsages(),
+      ImportKey(blink::WebCryptoKeyFormatRaw,
+                CryptoData(HexStringToBytes(key_raw_hex_in)),
+                CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha1),
+                true, 0, &key));
+}
+
 }  // namespace
 
 }  // namespace webcrypto