IDL compiler: [CustomElementCallbacks] for getter + cleanup values

Source/bindings/scripts/code_generator_v8.pm

Index: Source/bindings/scripts/code_generator_v8.pm
diff --git a/Source/bindings/scripts/code_generator_v8.pm b/Source/bindings/scripts/code_generator_v8.pm
index 12de7e5f89da407c6387d8782764f2c0819c1820..febcd983101190e685b9440d7e9b68af87cd7693 100644
--- a/Source/bindings/scripts/code_generator_v8.pm
+++ b/Source/bindings/scripts/code_generator_v8.pm
@@ -1727,15 +1727,8 @@ sub GenerateCustomElementInvocationScopeIfNeeded
 {
     my $code = "";
     my $ext = shift;
-    my $annotation = $ext->{"CustomElementCallbacks"} || "";
 
-    if ($annotation eq "None") {
-        # Explicit CustomElementCallbacks=None overrides any other
-        # heuristic.
-        return $code;
-    }
-
-    if ($annotation eq "Enable" or $ext->{"Reflect"}) {
+    if ($ext->{"CustomElementCallbacks"} or $ext->{"Reflect"}) {
         AddToImplIncludes("core/dom/custom/CustomElementCallbackDispatcher.h");
         $code .= <<END;
     CustomElementCallbackDispatcher::CallbackDeliveryScope deliveryScope;