Re-land Catch up the spec update in CSS Rhythmic Sizing

third_party/WebKit/Source/core/css/CSSPrimitiveValue.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2012 Apple Inc. All rights
  * reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 282 matching lines @@
 }
 
 template <>
 unsigned short CSSPrimitiveValue::computeLength(
     const CSSToLengthConversionData& conversionData) const {
   return roundForImpreciseConversion<unsigned short>(
       computeLengthDouble(conversionData));
 }
 
 template <>
+uint8_t CSSPrimitiveValue::computeLength(
+    const CSSToLengthConversionData& conversionData) const {
+  return roundForImpreciseConversion<uint8_t>(
+      computeLengthDouble(conversionData));
+}
+
+template <>
 float CSSPrimitiveValue::computeLength(
     const CSSToLengthConversionData& conversionData) const {
   return clampTo<float>(computeLengthDouble(conversionData));
 }
 
 template <>
 double CSSPrimitiveValue::computeLength(
     const CSSToLengthConversionData& conversionData) const {
   return computeLengthDouble(conversionData);
 }
@@ skipping 393 matching lines @@
     case UnitType::Calc:
       visitor->trace(m_value.calc);
       break;
     default:
       break;
   }
   CSSValue::traceAfterDispatch(visitor);
 }
 
 }  // namespace blink