Remove unused ExceptionState argument from CSSAngleValue constructor

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

 // Copyright 2016 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 CSSAngleValue_h
 #define CSSAngleValue_h
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/cssom/CSSStyleValue.h"
 
 namespace blink {
 
 class CORE_EXPORT CSSAngleValue final : public CSSStyleValue {
   WTF_MAKE_NONCOPYABLE(CSSAngleValue);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static CSSAngleValue* create(double value,
-                               const String& unit,
-                               ExceptionState&);
+  static CSSAngleValue* create(double value, const String& unit);
 
   StyleValueType type() const override { return AngleType; }
 
   double degrees() const;
   double radians() const;
   double gradians() const;
   double turns() const;
 
   double value() const { return m_value; }
   CSSPrimitiveValue::UnitType unit() const { return m_unit; }
   CSSValue* toCSSValue() const override;
 
  private:
   CSSAngleValue(double value, CSSPrimitiveValue::UnitType unit)
       : m_value(value), m_unit(unit) {}
 
   double m_value;
   CSSPrimitiveValue::UnitType m_unit;
 };
 }
 
 #endif  // CSSAngleValue_h