Remove custom implementation of History.state attribute getter

Source/bindings/core/v8/custom/V8HistoryCustom.cpp

 /*
  * Copyright (C) 2009 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 24 matching lines @@
 #include "bindings/core/v8/SerializedScriptValue.h"
 #include "bindings/core/v8/SerializedScriptValueFactory.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8HiddenValue.h"
 #include "bindings/core/v8/V8Window.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/History.h"
 
 namespace blink {
 
-void V8History::stateAttributeGetterCustom(const v8::PropertyCallbackInfo<v8::Value>& info)
-{
-    History* history = V8History::toImpl(info.Holder());
-
-    v8::Handle<v8::Value> value = V8HiddenValue::getHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()));
-
-    if (!value.IsEmpty() && !history->stateChanged()) {
-        v8SetReturnValue(info, value);
-        return;
-    }
-
-    RefPtr<SerializedScriptValue> serialized = history->state();
-    value = serialized ? serialized->deserialize(info.GetIsolate()) : v8::Handle<v8::Value>(v8::Null(info.GetIsolate()));
-    V8HiddenValue::setHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()), value);
-
-    v8SetReturnValue(info, value);
-}
-
 void V8History::pushStateMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "pushState", "History", info.Holder(), info.GetIsolate());
     RefPtr<SerializedScriptValue> historyState = SerializedScriptValueFactory::instance().create(info[0], 0, 0, exceptionState, info.GetIsolate());
     if (exceptionState.throwIfNeeded())
         return;
 
     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, title, info[1]);
     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, url, info[2]);
 
@@ skipping 13 matching lines @@
     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, title, info[1]);
     TOSTRING_VOID(V8StringResource<TreatNullAndUndefinedAsNullString>, url, info[2]);
 
     History* history = V8History::toImpl(info.Holder());
     history->stateObjectAdded(historyState.release(), title, url, FrameLoadTypeRedirectWithLockedBackForwardList, exceptionState);
     V8HiddenValue::deleteHiddenValue(info.GetIsolate(), info.Holder(), V8HiddenValue::state(info.GetIsolate()));
     exceptionState.throwIfNeeded();
 }
 
 } // namespace blink