Move viewport unit resolution to style recalc time

Source/core/css/CSSCalculationValue.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 47 matching lines @@
     case CSSPrimitiveValue::CSS_EMS:
     case CSSPrimitiveValue::CSS_EXS:
     case CSSPrimitiveValue::CSS_PX:
     case CSSPrimitiveValue::CSS_CM:
     case CSSPrimitiveValue::CSS_MM:
     case CSSPrimitiveValue::CSS_IN:
     case CSSPrimitiveValue::CSS_PT:
     case CSSPrimitiveValue::CSS_PC:
     case CSSPrimitiveValue::CSS_REMS:
     case CSSPrimitiveValue::CSS_CHS:
+    case CSSPrimitiveValue::CSS_VW:
+    case CSSPrimitiveValue::CSS_VH:
+    case CSSPrimitiveValue::CSS_VMIN:
+    case CSSPrimitiveValue::CSS_VMAX:
         return CalcLength;
     case CSSPrimitiveValue::CSS_VARIABLE_NAME:
         return CalcVariable;
     default:
         return CalcOther;
     }
 }
 
 static bool hasDoubleValue(CSSPrimitiveValue::UnitTypes type)
 {
@@ skipping 657 matching lines @@
         return 0;
     }
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 PassRefPtr<CSSCalcExpressionNode> CSSCalcValue::createExpressionNode(const Length& length, float zoom)
 {
     switch (length.type()) {
     case Percent:
-    case ViewportPercentageWidth:
-    case ViewportPercentageHeight:
-    case ViewportPercentageMin:
-    case ViewportPercentageMax:
     case Fixed:
         return createExpressionNode(CSSPrimitiveValue::create(length, zoom), length.value() == trunc(length.value()));
     case Calculated:
         return createExpressionNode(length.calculationValue()->expression(), zoom);
     case Auto:
     case Intrinsic:
     case MinIntrinsic:
     case MinContent:
     case MaxContent:
     case FillAvailable:
     case FitContent:
     case ExtendToZoom:
+    case DeviceWidth:
+    case DeviceHeight:
     case Undefined:
         ASSERT_NOT_REACHED();
         return 0;
     }
     ASSERT_NOT_REACHED();
     return 0;
 }
 
 PassRefPtr<CSSCalcValue> CSSCalcValue::create(CSSParserString name, CSSParserValueList* parserValueList, ValueRange range)
 {
     CSSCalcExpressionNodeParser parser;
     RefPtr<CSSCalcExpressionNode> expression;
 
     if (equalIgnoringCase(name, "calc(") || equalIgnoringCase(name, "-webkit-calc("))
         expression = parser.parseCalc(parserValueList);
     // FIXME calc (http://webkit.org/b/16662) Add parsing for min and max here
 
     return expression ? adoptRef(new CSSCalcValue(expression, range)) : 0;
 }
 
 PassRefPtr<CSSCalcValue> CSSCalcValue::create(PassRefPtr<CSSCalcExpressionNode> expression, ValueRange range)
 {
     return adoptRef(new CSSCalcValue(expression, range));
 }
 
 } // namespace WebCore