A thread safe CSS calc parser for sizes

Source/core/css/MediaValuesCached.cpp

 // Copyright 2014 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 "config.h"
 #include "core/css/MediaValuesCached.h"
 
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/dom/Document.h"
 #include "core/html/imports/HTMLImportsController.h"
@@ skipping 59 matching lines @@
 PassRefPtr<MediaValues> MediaValuesCached::copy() const
 {
     return adoptRef(new MediaValuesCached(m_data));
 }
 
 bool MediaValuesCached::computeLength(double value, CSSPrimitiveValue::UnitTypes type, int& result) const
 {
     return MediaValues::computeLength(value, type, m_data.defaultFontSize, m_data.viewportWidth, m_data.viewportHeight, result);
 }
 
+bool MediaValuesCached::computeLength(double value, CSSPrimitiveValue::UnitTypes type, double& result) const
+{
+    return MediaValues::computeLength(value, type, m_data.defaultFontSize, m_data.viewportWidth, m_data.viewportHeight, result);
+}
+
 bool MediaValuesCached::isSafeToSendToAnotherThread() const
 {
     return hasOneRef();
 }
 
 int MediaValuesCached::viewportWidth() const
 {
     return m_data.viewportWidth;
 }
 
@@ skipping 61 matching lines @@
 {
     return 0;
 }
 
 bool MediaValuesCached::hasValues() const
 {
     return true;
 }
 
 } // namespace