Web Animations API: Deferred computation of interpolated values

Source/core/css/CSSPrimitiveValue.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2012 Apple Inc. All rights reserved.
  *
  * 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 679 matching lines @@
     // We do not apply the zoom factor when we are computing the value of the font-size property. The zooming
     // for font sizes is much more complicated, since we have to worry about enforcing the minimum font size preference
     // as well as enforcing the implicit "smart minimum."
     double result = getDoubleValue() * factor;
     if (computingFontSize || isFontRelativeLength())
         return result;
 
     return result * conversionData.zoom();
 }
 
+void CSSPrimitiveValue::zeroLengthArray(CSSLengthArray& lengthArray)
+{
+    lengthArray.resize(LengthUnitTypeCount);
+    for (size_t i = 0; i < LengthUnitTypeCount; ++i)
+        lengthArray.at(i) = 0;
+}
+
 void CSSPrimitiveValue::accumulateLengthArray(CSSLengthArray& lengthArray, double multiplier) const
 {
     ASSERT(lengthArray.size() == LengthUnitTypeCount);
 
     if (m_primitiveUnitType == CSS_CALC) {
         cssCalcValue()->accumulateLengthArray(lengthArray, multiplier);
         return;
     }
 
     LengthUnitType lengthType;
@@ skipping 754 matching lines @@
     case CSS_SHAPE:
         visitor->trace(m_value.shape);
         break;
     default:
         break;
     }
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace WebCore