WebCrypto: Add algorithm normalization rules for RSASSA-PKCS1-v1_5.

Source/modules/crypto/RsaKeyGenParams.idl

Index: Source/modules/crypto/RsaKeyGenParams.idl
diff --git a/Source/modules/crypto/AesCbcParams.idl b/Source/modules/crypto/RsaKeyGenParams.idl
similarity index 91%
copy from Source/modules/crypto/AesCbcParams.idl
copy to Source/modules/crypto/RsaKeyGenParams.idl
index b068ec9586cc8caffbb7c33b60fa19a811347d9f..0ec9d215ff672a269c4dd1b4c5fa724bcb50060d 100644
--- a/Source/modules/crypto/AesCbcParams.idl
+++ b/Source/modules/crypto/RsaKeyGenParams.idl
@@ -30,6 +30,7 @@
 
 [
     NoInterfaceObject,
-] interface AesCbcParams : Algorithm {
-    readonly attribute Uint8Array iv;
+] interface RsaKeyGenParams : Algorithm {
+    readonly attribute unsigned long modulusLength;
+    readonly attribute Uint8Array publicExponent;
 };