[CSSTypedOM] Computed StylePropertyMap use ComputedStyle for Lengths

third_party/WebKit/Source/core/css/cssom/CSSCalcLength.cpp

 // 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.
 
 #include "core/css/cssom/CSSCalcLength.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/css/CSSCalculationValue.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/cssom/CSSCalcDictionary.h"
@@ skipping 72 matching lines @@
 }
 
 CSSCalcLength* CSSCalcLength::fromCSSValue(const CSSPrimitiveValue& value) {
   std::unique_ptr<UnitData> unitData =
       UnitData::fromExpressionNode(value.cssCalcValue()->expressionNode());
   if (unitData)
     return new CSSCalcLength(*unitData);
   return nullptr;
 }
 
+CSSCalcLength* CSSCalcLength::fromLength(const Length& length) {
+  DCHECK(length.isCalculated());
+  PixelsAndPercent values = length.getPixelsAndPercent();
+  UnitData unitData;
+  unitData.set(CSSPrimitiveValue::UnitType::Pixels, values.pixels);
+  unitData.set(CSSPrimitiveValue::UnitType::Percentage, values.percent);
+  CSSCalcLength* result = new CSSCalcLength(unitData);
+  return result;
+}
+
 bool CSSCalcLength::containsPercent() const {
   return m_unitData.has(CSSPrimitiveValue::UnitType::Percentage);
 }
 
 CSSLengthValue* CSSCalcLength::addInternal(const CSSLengthValue* other) {
   UnitData result = m_unitData;
   if (other->type() == SimpleLengthType) {
     const CSSSimpleLength* simpleLength = toCSSSimpleLength(other);
     result.set(
         simpleLength->lengthUnit(),
@@ skipping 180 matching lines @@
 void CSSCalcLength::UnitData::divide(double x) {
   DCHECK_NE(x, 0);
   for (int i = 0; i < CSSLengthValue::kNumSupportedUnits; ++i) {
     if (hasAtIndex(i)) {
       setAtIndex(i, getAtIndex(i) / x);
     }
   }
 }
 
 }  // namespace blink