[oilpan]: optimize the way we allocate persistent handles in wrappers.

Source/bindings/templates/interface.cpp

Index: Source/bindings/templates/interface.cpp
diff --git a/Source/bindings/templates/interface.cpp b/Source/bindings/templates/interface.cpp
index e364c9411002df90132dc029a1f1c79582a0483d..7cbb3fb2aabbce0030af21c7990bbcea864be0df 100644
--- a/Source/bindings/templates/interface.cpp
+++ b/Source/bindings/templates/interface.cpp
@@ -1246,13 +1246,13 @@ void {{v8_class}}::derefObject(ScriptWrappableBase* internalPointer)
 {% endif %}
 }
 
-PersistentNode* {{v8_class}}::createPersistentHandle(ScriptWrappableBase* internalPointer)
+WrapperPersistentNode* {{v8_class}}::createPersistentHandle(ScriptWrappableBase* internalPointer)
 {
 {% if gc_type == 'GarbageCollectedObject' %}
-    return new Persistent<{{cpp_class}}>(fromInternalPointer(internalPointer));
+    return new WrapperPersistent<{{cpp_class}}>(fromInternalPointer(internalPointer));
 {% elif gc_type == 'WillBeGarbageCollectedObject' %}
 #if ENABLE(OILPAN)
-    return new Persistent<{{cpp_class}}>(fromInternalPointer(internalPointer));
+    return new WrapperPersistent<{{cpp_class}}>(fromInternalPointer(internalPointer));
 #else
     ASSERT_NOT_REACHED();
     return 0;