Encapsulate the CSSPrimitiveValue UnitType trie bethind a method that takes a StringView.

third_party/WebKit/Source/core/css/CSSPrimitiveValue.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@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.
  *
@@ skipping 14 matching lines @@
 #include "core/CSSPropertyNames.h"
 #include "core/CSSValueKeywords.h"
 #include "core/CoreExport.h"
 #include "core/css/CSSValue.h"
 #include "wtf/BitVector.h"
 #include "wtf/Forward.h"
 #include "wtf/MathExtras.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/TypeTraits.h"
 #include "wtf/text/StringHash.h"
+#include "wtf/text/StringView.h"
 
 namespace blink {
 
 class CSSCalcValue;
 class CSSToLengthConversionData;
 class Length;
 class ComputedStyle;
 
 // Dimension calculations are imprecise, often resulting in values of e.g.
 // 44.99998. We need to go ahead and round if we're really close to the next
@@ skipping 192 matching lines @@
     int getIntValue() const { return getValue<int>(); }
     template<typename T> inline T getValue() const { return clampTo<T>(getDoubleValue()); }
 
     CSSCalcValue* cssCalcValue() const { ASSERT(isCalculated()); return m_value.calc; }
 
     CSSValueID getValueID() const { return type() == UnitType::ValueID ? m_value.valueID : CSSValueInvalid; }
 
     template<typename T> inline T convertTo() const; // Defined in CSSPrimitiveValueMappings.h
 
     static const char* unitTypeToString(UnitType);
+    static UnitType stringToUnitType(StringView string)
+    {
+        if (string.is8Bit())
+            return stringToUnitType(string.characters8(), string.length());
+        return stringToUnitType(string.characters16(), string.length());
+    }
+
     String customCSSText() const;
 
     bool equals(const CSSPrimitiveValue&) const;
 
     DECLARE_TRACE_AFTER_DISPATCH();
 
     static UnitType canonicalUnitTypeForCategory(UnitCategory);
     static double conversionToCanonicalUnitsScaleFactor(UnitType);
 
     // Returns true and populates lengthUnitType, if unitType is a length unit. Otherwise, returns false.
@@ skipping 10 matching lines @@
     template<typename T> CSSPrimitiveValue(T* val)
         : CSSValue(PrimitiveClass)
     {
         init(val);
     }
 
     static void create(int); // compile-time guard
     static void create(unsigned); // compile-time guard
     template<typename T> operator T*(); // compile-time guard
 
+    // Code generated by CSSPrimitiveValueUnitTrie.cpp.tmpl
+    static UnitType stringToUnitType(const LChar*, unsigned length);
+    static UnitType stringToUnitType(const UChar*, unsigned length);
+
     void init(UnitType);
     void init(const Length&);
     void init(CSSCalcValue*);
 
     double computeLengthDouble(const CSSToLengthConversionData&) const;
 
     inline UnitType type() const { return static_cast<UnitType>(m_primitiveUnitType); }
 
     union {
         CSSValueID valueID;
         double num;
         // FIXME: oilpan: Should be a member, but no support for members in unions. Just trace the raw ptr for now.
         CSSCalcValue* calc;
     } m_value;
 };
 
 using CSSLengthArray = CSSPrimitiveValue::CSSLengthArray;
 
 DEFINE_CSS_VALUE_TYPE_CASTS(CSSPrimitiveValue, isPrimitiveValue());
 
 } // namespace blink
 
 #endif // CSSPrimitiveValue_h