Split Gradient impl into separate classes

third_party/WebKit/Source/core/paint/ThemePainterMac.mm

 /*
  * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Google, Inc.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 367 matching lines @@
 
   FloatSize shadowOffset(isVerticalSlider ? 1 : 0, isVerticalSlider ? 0 : 1);
   float shadowBlur = 3;
   float shadowSpread = 0;
   paintInfo.context.save();
   paintInfo.context.drawInnerShadow(fillRect, shadowColor, shadowOffset,
                                     shadowBlur, shadowSpread);
   paintInfo.context.restore();
 
   RefPtr<Gradient> borderGradient =
-      Gradient::create(fillBounds.minXMinYCorner(),
-                       isVerticalSlider ? fillBounds.maxXMinYCorner()
-                                        : fillBounds.minXMaxYCorner());
+      Gradient::createLinear(fillBounds.minXMinYCorner(),
+                             isVerticalSlider ? fillBounds.maxXMinYCorner()
+                                              : fillBounds.minXMaxYCorner());
   borderGradient->addColorStop(0.0, borderGradientTopColor);
   borderGradient->addColorStop(1.0, borderGradientBottomColor);
 
   FloatRect borderRect(unzoomedRect);
   borderRect.inflate(-LayoutThemeMac::sliderTrackBorderWidth / 2.0);
   float borderRadiusSize =
       (isVerticalSlider ? borderRect.width() : borderRect.height()) / 2;
   FloatSize borderRadius(borderRadiusSize, borderRadiusSize);
   FloatRoundedRect borderRRect(borderRect, borderRadius, borderRadius,
                                borderRadius, borderRadius);
@@ skipping 56 matching lines @@
 
   borderBounds.inflate(-LayoutThemeMac::sliderThumbBorderWidth);
   FloatSize shadowOffset(0, 1);
   paintInfo.context.setShadow(
       shadowOffset, LayoutThemeMac::sliderThumbShadowBlur, shadowColor);
   paintInfo.context.setFillColor(Color::black);
   paintInfo.context.fillEllipse(borderBounds);
   paintInfo.context.setDrawLooper(nullptr);
 
   IntRect fillBounds = enclosedIntRect(unzoomedRect);
-  RefPtr<Gradient> fillGradient = Gradient::create(fillBounds.minXMinYCorner(),
-                                                   fillBounds.minXMaxYCorner());
+  RefPtr<Gradient> fillGradient = Gradient::createLinear(
+      fillBounds.minXMinYCorner(), fillBounds.minXMaxYCorner());
   fillGradient->addColorStop(0.0, fillGradientTopColor);
   fillGradient->addColorStop(0.52, fillGradientUpperMiddleColor);
   fillGradient->addColorStop(0.52, fillGradientLowerMiddleColor);
   fillGradient->addColorStop(1.0, fillGradientBottomColor);
   PaintFlags fillFlags(paintInfo.context.fillFlags());
   fillGradient->applyToFlags(fillFlags, SkMatrix::I());
   paintInfo.context.drawOval(borderBounds, fillFlags);
 
-  RefPtr<Gradient> borderGradient = Gradient::create(
+  RefPtr<Gradient> borderGradient = Gradient::createLinear(
       fillBounds.minXMinYCorner(), fillBounds.minXMaxYCorner());
   borderGradient->addColorStop(0.0, borderGradientTopColor);
   borderGradient->addColorStop(1.0, borderGradientBottomColor);
   paintInfo.context.setStrokeThickness(LayoutThemeMac::sliderThumbBorderWidth);
   PaintFlags borderFlags(paintInfo.context.strokeFlags());
   borderGradient->applyToFlags(borderFlags, SkMatrix::I());
   paintInfo.context.drawOval(borderBounds, borderFlags);
 
   if (LayoutTheme::isFocused(o)) {
     Path borderPath;
@@ skipping 315 matching lines @@
     backgroundBounds.origin.y = bounds.origin.y + (heightDiff / 2) + 1;
   }
 
   LocalCurrentGraphicsContext localContext(paintInfo.context, rect);
   HIThemeDrawButton(&backgroundBounds, &drawInfo, localContext.cgContext(),
                     kHIThemeOrientationNormal, 0);
   return false;
 }
 
 }  // namespace blink