calc expressions should support time, angle and frequency 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 198 matching lines @@
 
 CSSPrimitiveValue::UnitType CSSPrimitiveValue::primitiveType() const
 {
     if (m_primitiveUnitType == CSS_PROPERTY_ID || m_primitiveUnitType == CSS_VALUE_ID)
         return CSS_IDENT;
 
     if (m_primitiveUnitType != CSS_CALC)
         return static_cast<UnitType>(m_primitiveUnitType);
 
     switch (m_value.calc->category()) {
+    case CalcAngle:
+        return CSS_DEG;
+    case CalcFrequency:
+        return CSS_HZ;
     case CalcNumber:
         return CSS_NUMBER;
     case CalcPercent:
         return CSS_PERCENTAGE;
     case CalcLength:
         return CSS_PX;
     case CalcPercentNumber:
         return CSS_CALC_PERCENTAGE_WITH_NUMBER;
     case CalcPercentLength:
         return CSS_CALC_PERCENTAGE_WITH_LENGTH;
+    case CalcTime:
+        return CSS_MS;
     case CalcOther:
         return CSS_UNKNOWN;
     }
     return CSS_UNKNOWN;
 }
 
 static const AtomicString& propertyName(CSSPropertyID propertyID)
 {
     ASSERT_ARG(propertyID, propertyID >= 0);
     ASSERT_ARG(propertyID, (propertyID >= firstCSSProperty && propertyID < firstCSSProperty + numCSSProperties));
@@ skipping 299 matching lines @@
 {
     switch (m_primitiveUnitType) {
     case CSS_DEG:
         return getDoubleValue();
     case CSS_RAD:
         return rad2deg(getDoubleValue());
     case CSS_GRAD:
         return grad2deg(getDoubleValue());
     case CSS_TURN:
         return turn2deg(getDoubleValue());
+    case CSS_CALC:

[alancutter (OOO until 2018), 2014/07/02 05:56:10]

Similar comments as for computeTime(), this should ASSERT that the calc holds an
angle.

+        return getDoubleValue();
     default:
         ASSERT_NOT_REACHED();
         return 0;
     }
 }
 
 template<> int CSSPrimitiveValue::computeLength(const CSSToLengthConversionData& conversionData)
 {
     return roundForImpreciseConversion<int>(computeLengthDouble(conversionData));
 }
@@ skipping 874 matching lines @@
     case CSS_SHAPE:
         visitor->trace(m_value.shape);
         break;
     default:
         break;
     }
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace WebCore