Split Gradient impl into separate classes

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

 /*
  * Copyright (C) 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2015 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 892 matching lines @@
       default:
         ASSERT_NOT_REACHED();
     }
   }
 
   GradientDesc desc(firstPoint, secondPoint,
                     m_repeating ? SpreadMethodRepeat : SpreadMethodPad);
   addStops(desc, conversionData, object);
 
   RefPtr<Gradient> gradient =
-      Gradient::create(desc.p0, desc.p1, desc.spreadMethod,
-                       Gradient::ColorInterpolation::Premultiplied);
+      Gradient::createLinear(desc.p0, desc.p1, desc.spreadMethod,
+                             Gradient::ColorInterpolation::Premultiplied);
 
   // Now add the stops.
   gradient->addColorStops(desc.stops);
 
   return gradient.release();
 }
 
 bool CSSLinearGradientValue::equals(const CSSLinearGradientValue& other) const {
   if (m_gradientType == CSSDeprecatedLinearGradient)
     return other.m_gradientType == m_gradientType &&
@@ skipping 334 matching lines @@
   DCHECK(std::isfinite(firstRadius));
   DCHECK(std::isfinite(secondRadius.width()));
   DCHECK(std::isfinite(secondRadius.height()));
 
   bool isDegenerate = !secondRadius.width() || !secondRadius.height();
   GradientDesc desc(firstPoint, secondPoint, firstRadius,
                     isDegenerate ? 0 : secondRadius.width(),
                     m_repeating ? SpreadMethodRepeat : SpreadMethodPad);
   addStops(desc, conversionData, object);
 
-  RefPtr<Gradient> gradient = Gradient::create(
+  RefPtr<Gradient> gradient = Gradient::createRadial(
       desc.p0, desc.r0, desc.p1, desc.r1,
       isDegenerate ? 1 : secondRadius.aspectRatio(), desc.spreadMethod,
       Gradient::ColorInterpolation::Premultiplied);
 
   // Now add the stops.
   gradient->addColorStops(desc.stops);
 
   return gradient.release();
 }
 
@@ skipping 82 matching lines @@
   return result.toString();
 }
 
 PassRefPtr<Gradient> CSSConicGradientValue::createGradient(
     const CSSToLengthConversionData& conversionData,
     const IntSize& size,
     const LayoutObject& object) {
   DCHECK(!size.isEmpty());
 
   // TODO(fmalita): implement
-  return Gradient::create(FloatPoint(), FloatPoint());
+  return Gradient::createLinear(FloatPoint(), FloatPoint());
 }
 
 bool CSSConicGradientValue::equals(const CSSConicGradientValue& other) const {
   return m_repeating == other.m_repeating &&
          dataEquivalent(m_firstX, other.m_firstX) &&
          dataEquivalent(m_firstY, other.m_firstY) &&
          dataEquivalent(m_fromAngle, other.m_fromAngle) &&
          m_stops == other.m_stops;
 }
 
 DEFINE_TRACE_AFTER_DISPATCH(CSSConicGradientValue) {
   visitor->trace(m_fromAngle);
   CSSGradientValue::traceAfterDispatch(visitor);
 }
 
 }  // namespace blink