Fixing CustomEvent.detail leaks.

sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index a226662e35a38f4989c545a17b92a7f5a3ac0a37..26dcd4a644867c601399fdad5d5bb06aa9246936 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -6541,7 +6541,8 @@ class CustomEvent extends Event {
   factory CustomEvent(String type,
       {bool canBubble: true, bool cancelable: true, Object detail}) {
 
-    final CustomEvent e = document.$dom_createEvent("CustomEvent");
+    final CustomEvent e = document.$dom_createEvent('CustomEvent');
+
     e.$dom_initCustomEvent(type, canBubble, cancelable, detail);

[vsm, 2013/07/10 19:06:40]

Should the Dartium version being doing a conversion also?  Or is it already
doing it in C++?

[blois, 2013/07/10 20:10:46]

Dartium is already doing it (tests pass on Dartium), generated code for the
constructor is:

  ScriptValue detailArg =
DartUtilities::dartToScriptValue(Dart_GetNativeArgument(args, 4), exception);
  if (exception)
      goto fail;

  receiver->initCustomEvent(typeArg, canBubbleArg, cancelableArg, detailArg);

Also the getter for detail does a similar conversion.

 
     return e;