Revert of Removing duplicate functions and symbol names in core/css

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

-// Copyright 2017 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 zoomAdjustedPixelValue_h
-#define zoomAdjustedPixelValue_h
-
-#include "core/css/CSSPrimitiveValue.h"
-#include "core/style/ComputedStyle.h"
-
-namespace blink {
-class ComputedStyle;
-
-inline CSSPrimitiveValue* zoomAdjustedPixelValue(double value,
-                                                 const ComputedStyle& style) {
-  return CSSPrimitiveValue::create(adjustFloatForAbsoluteZoom(value, style),
-                                   CSSPrimitiveValue::UnitType::Pixels);
-}
-}
-#endif  // zoomAdjustedPixelValue_h