Make calls to AtomicString(const String&) explicit in svg/

Source/core/svg/SVGFEConvolveMatrixElement.cpp

 /*
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 265 matching lines @@
         || attrName == SVGNames::kernelMatrixAttr) {
         invalidate();
         return;
     }
 
     ASSERT_NOT_REACHED();
 }
 
 PassRefPtr<FilterEffect> SVGFEConvolveMatrixElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
 {
-    FilterEffect* input1 = filterBuilder->getEffectById(in1CurrentValue());
+    FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(in1CurrentValue()));
 
     if (!input1)
         return 0;
 
     int orderXValue = orderXCurrentValue();
     int orderYValue = orderYCurrentValue();
     if (!hasAttribute(SVGNames::orderAttr)) {
         orderXValue = 3;
         orderYValue = 3;
     }
@@ skipping 41 matching lines @@
 
     RefPtr<FilterEffect> effect = FEConvolveMatrix::create(filter,
                     IntSize(orderXValue, orderYValue), divisorValue,
                     biasCurrentValue(), IntPoint(targetXValue, targetYValue), edgeModeCurrentValue(),
                     FloatPoint(kernelUnitLengthXValue, kernelUnitLengthYValue), preserveAlphaCurrentValue(), kernelMatrix.toFloatVector());
     effect->inputEffects().append(input1);
     return effect.release();
 }
 
 } // namespace WebCore