Simplify SVGAnimated* initialization

third_party/WebKit/Source/core/svg/SVGFETileElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 10 matching lines @@
 #include "core/svg/SVGFETileElement.h"
 
 #include "core/SVGNames.h"
 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
 #include "platform/graphics/filters/FETile.h"
 
 namespace blink {
 
 inline SVGFETileElement::SVGFETileElement(Document& document)
     : SVGFilterPrimitiveStandardAttributes(SVGNames::feTileTag, document),
-      m_in1(SVGAnimatedString::create(this,
-                                      SVGNames::inAttr,
-                                      SVGString::create())) {
+      m_in1(SVGAnimatedString::create(this, SVGNames::inAttr)) {
   addToPropertyMap(m_in1);
 }
 
 DEFINE_TRACE(SVGFETileElement) {
   visitor->trace(m_in1);
   SVGFilterPrimitiveStandardAttributes::trace(visitor);
 }
 
 DEFINE_NODE_FACTORY(SVGFETileElement)
 
@@ skipping 12 matching lines @@
   FilterEffect* input1 = filterBuilder->getEffectById(
       AtomicString(m_in1->currentValue()->value()));
   ASSERT(input1);
 
   FilterEffect* effect = FETile::create(filter);
   effect->inputEffects().append(input1);
   return effect;
 }
 
 }  // namespace blink