Replace ASSERT with DCHECK in core/svg/

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

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 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 23 matching lines @@
 DEFINE_NODE_FACTORY(SVGFEMergeElement)
 
 FilterEffect* SVGFEMergeElement::build(SVGFilterBuilder* filterBuilder,
                                        Filter* filter) {
   FilterEffect* effect = FEMerge::create(filter);
   FilterEffectVector& mergeInputs = effect->inputEffects();
   for (SVGFEMergeNodeElement& mergeNode :
        Traversal<SVGFEMergeNodeElement>::childrenOf(*this)) {
     FilterEffect* mergeEffect = filterBuilder->getEffectById(
         AtomicString(mergeNode.in1()->currentValue()->value()));
-    ASSERT(mergeEffect);
+    DCHECK(mergeEffect);
     mergeInputs.push_back(mergeEffect);
   }
   return effect;
 }
 
 bool SVGFEMergeElement::taintsOrigin(bool inputsTaintOrigin) const {
   return inputsTaintOrigin;
 }
 
 }  // namespace blink