Fix Document leak from NodeFilter.

Source/bindings/v8/custom/V8TreeWalkerCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-#include "core/dom/NodeList.h"
+#include "V8TreeWalker.h"
 
+#include "V8NodeFilter.h"
+#include "bindings/v8/V8Binding.h"
+#include "bindings/v8/V8HiddenPropertyName.h"
 #include "core/dom/Node.h"
 
 namespace WebCore {
 
-void NodeList::anonymousNamedGetter(const AtomicString& name, bool& returnValue0Enabled, RefPtr<Node>& returnValue0, bool& returnValue1Enabled, unsigned& returnValue1)
+v8::Handle<v8::Object> wrap(TreeWalker* treeWalker, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
-    // Length property cannot be overridden.
-    DEFINE_STATIC_LOCAL(const AtomicString, length, ("length", AtomicString::ConstructFromLiteral));
-    if (name == length) {
-        returnValue1Enabled = true;
-        returnValue1 = this->length();
-        return;
-    }
+    ASSERT(treeWalker);
+    ASSERT(DOMDataStore::getWrapper<V8TreeWalker>(treeWalker, isolate).IsEmpty());
 
-    Node* result = namedItem(name);
-    if (!result)
-        return;
+    v8::Handle<v8::Object> wrapper = V8TreeWalker::createWrapper(treeWalker, creationContext, isolate);
 
-    returnValue0Enabled = true;
-    returnValue0 = result;
+    if (treeWalker->filter())
+        V8HiddenPropertyName::setNamedHiddenReference(wrapper, "filter", toV8(treeWalker->filter(), creationContext, isolate));
+
+    return wrapper;
 }
 
-
 } // namespace WebCore