[webcrypto] Make the import algorithm a required parameter.

LayoutTests/crypto/importKey.html

Index: LayoutTests/crypto/importKey.html
diff --git a/LayoutTests/crypto/importKey.html b/LayoutTests/crypto/importKey.html
index a7481ccdd286bfbbcf57b209221c9045cb816d90..fcdc3e24447427abc30821367f59df75c953b880 100644
--- a/LayoutTests/crypto/importKey.html
+++ b/LayoutTests/crypto/importKey.html
@@ -112,17 +112,6 @@ Promise.resolve(null).then(function() {
     bytesShouldMatchHexString("key.algorithm.publicExponent", "010001", key.algorithm.publicExponent);
     shouldBe("key.usages.join(',')", "''")
 
-    // Import a "raw" key without specifying the algorithm.
-    keyFormat = "raw";
-    data = asciiToUint8Array("16 bytes of key!");
-    algorithm = null;
-    extractable = false;
-    keyUsages = [];
-
-    return crypto.subtle.importKey(keyFormat, data, algorithm, extractable, keyUsages);
-}).then(undefined, function(result) {
-    debug("rejected with " + result);
-
     keyFormat = "raw";
     data = asciiToUint8Array("");
     algorithm = aesCbc;
@@ -147,6 +136,9 @@ Promise.resolve(null).then(function() {
     shouldThrow("crypto.subtle.importKey(keyFormat, [], algorithm, extractable, keyUsages)");
     shouldThrow("crypto.subtle.importKey(keyFormat, null, algorithm, extractable, keyUsages)");
 
+    // Invalid algorithm
+    shouldThrow("crypto.subtle.importKey(keyFormat, data, null, extractable, keyUsages)");
+
     // Missing hash parameter for HMAC.
     shouldRejectPromiseWithNull("crypto.subtle.importKey(keyFormat, data, {name: 'hmac'}, extractable, keyUsages)");