Fix Document leak from NodeFilter.

Source/bindings/v8/V8Binding.cpp

Index: Source/bindings/v8/V8Binding.cpp
diff --git a/Source/bindings/v8/V8Binding.cpp b/Source/bindings/v8/V8Binding.cpp
index fcbc7de2cffce3ba2c561474ac4439650055e12c..7065faac83852ee17d468a1498c046253c362cdc 100644
--- a/Source/bindings/v8/V8Binding.cpp
+++ b/Source/bindings/v8/V8Binding.cpp
@@ -37,14 +37,12 @@
 #include "V8WorkerGlobalScope.h"
 #include "V8XPathNSResolver.h"
 #include "bindings/v8/ScriptController.h"
-#include "bindings/v8/V8NodeFilterCondition.h"
 #include "bindings/v8/V8ObjectConstructor.h"
 #include "bindings/v8/V8WindowShell.h"
 #include "bindings/v8/WorkerScriptController.h"
 #include "bindings/v8/custom/V8CustomXPathNSResolver.h"
 #include "core/dom/DOMStringList.h"
 #include "core/dom/Element.h"
-#include "core/dom/NodeFilter.h"
 #include "core/dom/QualifiedName.h"
 #include "core/inspector/BindingVisitors.h"
 #include "core/loader/FrameLoader.h"
@@ -142,11 +140,6 @@ Vector<v8::Handle<v8::Value> > toVectorOfArguments(const v8::FunctionCallbackInf
     return result;
 }
 
-PassRefPtr<NodeFilter> toNodeFilter(v8::Handle<v8::Value> callback)
-{
-    return NodeFilter::create(V8NodeFilterCondition::create(callback));
-}
-
 static const int8_t kMaxInt8 = 127;
 static const int8_t kMinInt8 = -128;
 static const uint8_t kMaxUInt8 = 255;