Implement HKDF for WebCrypto (blink-side)

Source/bindings/modules/v8/ScriptValueSerializerForModules.cpp

Index: Source/bindings/modules/v8/ScriptValueSerializerForModules.cpp
diff --git a/Source/bindings/modules/v8/ScriptValueSerializerForModules.cpp b/Source/bindings/modules/v8/ScriptValueSerializerForModules.cpp
index 08add9b64a162f1c2349c1a1f0b7f4b41428265f..ae2dd1497f24b22d73a10dbb984c6f999df9b09b 100644
--- a/Source/bindings/modules/v8/ScriptValueSerializerForModules.cpp
+++ b/Source/bindings/modules/v8/ScriptValueSerializerForModules.cpp
@@ -30,6 +30,7 @@ enum CryptoKeyAlgorithmTag {
     RsaPssTag = 13,
     EcdsaTag = 14,
     EcdhTag = 15,
+    HkdfTag = 16,
     // Maximum allowed value is 2^32-1
 };
 
@@ -215,6 +216,8 @@ void SerializedScriptValueWriterForModules::doWriteAlgorithmId(WebCryptoAlgorith
         return doWriteUint32(EcdsaTag);
     case WebCryptoAlgorithmIdEcdh:
         return doWriteUint32(EcdhTag);
+    case WebCryptoAlgorithmIdHkdf:
+        return doWriteUint32(HkdfTag);
     }
     ASSERT_NOT_REACHED();
 }
@@ -507,6 +510,9 @@ bool SerializedScriptValueReaderForModules::doReadAlgorithmId(WebCryptoAlgorithm
     case EcdhTag:
         id = WebCryptoAlgorithmIdEcdh;
         return true;
+    case HkdfTag:
+        id = WebCryptoAlgorithmIdHkdf;
+        return true;
     }
 
     return false;