[WIP] Add support for CSSValue-> CSSLengthValue and CSSTranslation

third_party/WebKit/Source/core/css/cssom/CSSSimpleLength.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CSSSimpleLength_h
 #define CSSSimpleLength_h
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/css/cssom/CSSLengthValue.h"
 
@@ skipping 28 matching lines @@
 
     void setValue(double value) { m_value = value; }
 
     StyleValueType type() const override { return StyleValueType::SimpleLengthType; }
 
     CSSValue* toCSSValue() const override;
 
 protected:
     virtual CSSLengthValue* addInternal(const CSSLengthValue* other, ExceptionState&);
     virtual CSSLengthValue* subtractInternal(const CSSLengthValue* other, ExceptionState&);
-    virtual CSSLengthValue* multiplyInternal(double, ExceptionState&);
-    virtual CSSLengthValue* divideInternal(double, ExceptionState&);
+    virtual CSSLengthValue* multiplyInternal(double);
+    virtual CSSLengthValue* divideInternal(double);
 
 private:
     CSSSimpleLength(double value, CSSPrimitiveValue::UnitType unit) : CSSLengthValue(), m_unit(unit), m_value(value) {}
 
     CSSPrimitiveValue::UnitType m_unit;
     double m_value;
 };
 
 #define DEFINE_SIMPLE_LENGTH_TYPE_CASTS(argumentType) \
     DEFINE_TYPE_CASTS(CSSSimpleLength, argumentType, value, \
         value->type() == CSSLengthValue::StyleValueType::SimpleLengthType, \
         value.type() == CSSLengthValue::StyleValueType::SimpleLengthType)
 
 DEFINE_SIMPLE_LENGTH_TYPE_CASTS(CSSLengthValue);
 DEFINE_SIMPLE_LENGTH_TYPE_CASTS(CSSStyleValue);
 
 } // namespace blink
 
 #endif