Fix Document leak from NodeFilter.

Source/bindings/v8/V8NodeFilterCondition.h

Index: Source/bindings/v8/V8NodeFilterCondition.h
diff --git a/Source/bindings/v8/V8NodeFilterCondition.h b/Source/bindings/v8/V8NodeFilterCondition.h
index 3314a1aca4bde54a4308c150cafb9141be17794f..87bf5476d0c5a8d2377be4b6b2f52748820a550d 100644
--- a/Source/bindings/v8/V8NodeFilterCondition.h
+++ b/Source/bindings/v8/V8NodeFilterCondition.h
@@ -43,9 +43,9 @@ class ScriptState;
 
 class V8NodeFilterCondition : public NodeFilterCondition {
 public:
-    static PassRefPtr<V8NodeFilterCondition> create(v8::Handle<v8::Value> filter)
+    static PassRefPtr<V8NodeFilterCondition> create(v8::Handle<v8::Value> filter, v8::Handle<v8::Object> owner)
     {
-        return adoptRef(new V8NodeFilterCondition(filter));
+        return adoptRef(new V8NodeFilterCondition(filter, owner));
     }
 
     virtual ~V8NodeFilterCondition();
@@ -53,7 +53,9 @@ public:
     virtual short acceptNode(ScriptState*, Node*) const;
 
 private:
-    explicit V8NodeFilterCondition(v8::Handle<v8::Value> filter);
+    explicit V8NodeFilterCondition(v8::Handle<v8::Value> filter, v8::Handle<v8::Object> owner);
+
+    static void makeWeakCallback(v8::Isolate*, v8::Persistent<v8::Value>*, V8NodeFilterCondition*);
 
     ScopedPersistent<v8::Value> m_filter;
 };