[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 56 matching lines @@
         "CSSCalcLength.");
   }
   return result;
 }
 
 CSSCalcLength* CSSCalcLength::fromCSSValue(const CSSPrimitiveValue&) {
   // TODO(meade): Implement.
   return nullptr;
 }
 
+CSSCalcLength* CSSCalcLength::fromLength(const Length& length) {
+  DCHECK(length.isCalculated());
+  PixelsAndPercent values = length.getPixelsAndPercent();
+  CSSCalcLength* result = new CSSCalcLength();
+  result->set(values.pixels, CSSPrimitiveValue::UnitType::Pixels);
+  result->set(values.percent, CSSPrimitiveValue::UnitType::Percentage);
+  return result;
+}
+
 bool CSSCalcLength::containsPercent() const {
   return has(CSSPrimitiveValue::UnitType::Percentage);
 }
 
 CSSLengthValue* CSSCalcLength::addInternal(const CSSLengthValue* other) {
   CSSCalcLength* result = CSSCalcLength::create(other);
   for (int i = 0; i < CSSLengthValue::kNumSupportedUnits; ++i) {
     if (hasAtIndex(i)) {
       result->setAtIndex(getAtIndex(i) + result->getAtIndex(i), i);
     }
@@ skipping 57 matching lines @@
   }
   return CSSPrimitiveValue::create(CSSCalcValue::create(node));
 }
 
 int CSSCalcLength::indexForUnit(CSSPrimitiveValue::UnitType unit) {
   return (static_cast<int>(unit) -
           static_cast<int>(CSSPrimitiveValue::UnitType::Percentage));
 }
 
 }  // namespace blink