[CSS Typed OM] Delete obsolete number and length classes from Typed OM

third_party/WebKit/Source/core/css/cssom/CSSNumberValue.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 CSSNumberValue_h
-#define CSSNumberValue_h
-
-#include "core/CoreExport.h"
-#include "core/css/CSSPrimitiveValue.h"
-#include "core/css/cssom/CSSStyleValue.h"
-#include "platform/bindings/ScriptWrappable.h"
-#include "platform/wtf/text/WTFString.h"
-
-namespace blink {
-
-class CORE_EXPORT CSSNumberValue final : public CSSStyleValue {
-  WTF_MAKE_NONCOPYABLE(CSSNumberValue);
-  DEFINE_WRAPPERTYPEINFO();
-
- public:
-  static CSSNumberValue* Create(double value) {
-    return new CSSNumberValue(value);
-  }
-
-  double value() const { return value_; }
-
-  CSSValue* ToCSSValue() const override {
-    return CSSPrimitiveValue::Create(value_,
-                                     CSSPrimitiveValue::UnitType::kNumber);
-  }
-
-  StyleValueType GetType() const override {
-    return StyleValueType::kNumberType;
-  }
-
- private:
-  CSSNumberValue(double value) : value_(value) {}
-
-  double value_;
-};
-
-}  // namespace blink
-
-#endif