Add a new weak handle callback that passes an Isolate to an embedder

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index f4a78256ac41417dbe0fa2635bd1dd351b1f610f..17dbfd41adbf648a55d2cd11963b7e5bcc741c6e 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -654,6 +654,15 @@ void V8::MakeWeak(i::Isolate* isolate, i::Object** object,
 }
 
 
+void V8::WeakenGlobal(i::Isolate* isolate, i::Object** object,

[Sven Panne, 2013/01/18 08:08:12]

no need for this, see other comments

[haraken, 2013/01/22 00:27:37]

Done.

+                      void* parameters, WeakenedReferenceCallback callback) {
+  ASSERT(isolate == i::Isolate::Current());
+  LOG_API(isolate, "WeakenGlobal");
+  isolate->global_handles()->MakeWeak(object, parameters,
+                                      callback);
+}
+
+
 void V8::ClearWeak(i::Object** obj) {
   i::Isolate* isolate = i::Isolate::Current();
   LOG_API(isolate, "ClearWeak");