bindings: Retires ScriptWrappable::init, etc.

Source/core/events/PopStateEvent.cpp

Index: Source/core/events/PopStateEvent.cpp
diff --git a/Source/core/events/PopStateEvent.cpp b/Source/core/events/PopStateEvent.cpp
index 3c4360062fa35d2104c711716a58b312918edafa..f954c65adfe50adad83f59765c8efb887107f856 100644
--- a/Source/core/events/PopStateEvent.cpp
+++ b/Source/core/events/PopStateEvent.cpp
@@ -37,14 +37,12 @@ PopStateEvent::PopStateEvent()
     , m_serializedState(nullptr)
     , m_history(nullptr)
 {
-    ScriptWrappable::init(this);
 }
 
 PopStateEvent::PopStateEvent(const AtomicString& type, const PopStateEventInit& initializer)
     : Event(type, initializer)
     , m_history(nullptr)
 {
-    ScriptWrappable::init(this);
 }
 
 PopStateEvent::PopStateEvent(PassRefPtr<SerializedScriptValue> serializedState, PassRefPtrWillBeRawPtr<History> history)
@@ -52,7 +50,6 @@ PopStateEvent::PopStateEvent(PassRefPtr<SerializedScriptValue> serializedState,
     , m_serializedState(serializedState)
     , m_history(history)
 {
-    ScriptWrappable::init(this);
 }
 
 PopStateEvent::~PopStateEvent()