Encapsulate optional SerializedScriptValue serialize/deserialize parameters.

third_party/WebKit/Source/bindings/templates/methods.cpp.tmpl

Index: third_party/WebKit/Source/bindings/templates/methods.cpp.tmpl
diff --git a/third_party/WebKit/Source/bindings/templates/methods.cpp.tmpl b/third_party/WebKit/Source/bindings/templates/methods.cpp.tmpl
index 28fc761b81b70bb67faf1d88e8094b864a768dbd..88c099f63f39b47f318a4bdd583965cf3b558540 100644
--- a/third_party/WebKit/Source/bindings/templates/methods.cpp.tmpl
+++ b/third_party/WebKit/Source/bindings/templates/methods.cpp.tmpl
@@ -433,7 +433,9 @@ static void postMessageImpl(const char* interfaceName, {{cpp_class}}* instance,
   RefPtr<SerializedScriptValue> message;
   if (instance->canTransferArrayBuffersAndImageBitmaps()) {
     // This instance supports sending array buffers by move semantics.
-    message = SerializedScriptValue::serialize(info.GetIsolate(), info[0], &transferables, nullptr, exceptionState);
+    SerializedScriptValue::SerializeOptions options;
+    options.transferables = &transferables;
+    message = SerializedScriptValue::serialize(info.GetIsolate(), info[0], options, exceptionState);
     if (exceptionState.hadException())
       return;
   } else {
@@ -449,7 +451,9 @@ static void postMessageImpl(const char* interfaceName, {{cpp_class}}* instance,
     transferables.arrayBuffers.clear();
     ImageBitmapArray transferableImageBitmaps = transferables.imageBitmaps;
     transferables.imageBitmaps.clear();
-    message = SerializedScriptValue::serialize(info.GetIsolate(), info[0], &transferables, nullptr, exceptionState);
+    SerializedScriptValue::SerializeOptions options;
+    options.transferables = &transferables;
+    message = SerializedScriptValue::serialize(info.GetIsolate(), info[0], options, exceptionState);
     if (exceptionState.hadException())
       return;