Introduce SVGPaintServer

Source/core/rendering/svg/RenderSVGResourceGradient.cpp

Index: Source/core/rendering/svg/RenderSVGResourceGradient.cpp
diff --git a/Source/core/rendering/svg/RenderSVGResourceGradient.cpp b/Source/core/rendering/svg/RenderSVGResourceGradient.cpp
index d1a3363ab40d9043c3be3731beb672ac421c6559..01d316f4408112ae697c79de25b31c06815d3721 100644
--- a/Source/core/rendering/svg/RenderSVGResourceGradient.cpp
+++ b/Source/core/rendering/svg/RenderSVGResourceGradient.cpp
@@ -21,12 +21,9 @@
  */
 
 #include "config.h"
-
 #include "core/rendering/svg/RenderSVGResourceGradient.h"
 
-#include "core/rendering/svg/RenderSVGShape.h"
-#include "core/rendering/svg/SVGRenderSupport.h"
-#include "platform/graphics/GraphicsContext.h"
+#include "core/paint/SVGPaintServer.h"
 
 namespace blink {
 
@@ -50,11 +47,10 @@ void RenderSVGResourceGradient::removeClientFromCache(RenderObject* client, bool
     markClientForInvalidation(client, markForInvalidation ? PaintInvalidation : ParentOnlyInvalidation);
 }
 
-bool RenderSVGResourceGradient::applyResource(RenderObject* object, RenderStyle* style, GraphicsContext* context, RenderSVGResourceModeFlags resourceMode)
+bool RenderSVGResourceGradient::preparePaintServer(RenderObject* object, RenderStyle* style, RenderSVGResourceModeFlags resourceMode, SVGPaintServer& paintServer)
 {
     ASSERT(object);
     ASSERT(style);
-    ASSERT(context);
 
     clearInvalidationMask();
 
@@ -108,24 +104,10 @@ bool RenderSVGResourceGradient::applyResource(RenderObject* object, RenderStyle*
     AffineTransform computedGradientSpaceTransform = computeResourceSpaceTransform(object, gradientData->userspaceTransform, svgStyle, resourceMode);
     gradientData->gradient->setGradientSpaceTransform(computedGradientSpaceTransform);
 
-    // Draw gradient
-    context->save();
-
-    if (resourceMode & ApplyToFillMode)
-        context->setFillGradient(gradientData->gradient);
-    else if (resourceMode & ApplyToStrokeMode)
-        context->setStrokeGradient(gradientData->gradient);
-
-    updateGraphicsContext(context, style, *object, resourceMode);
+    paintServer.setGradient(gradientData->gradient);
     return true;
 }
 
-void RenderSVGResourceGradient::postApplyResource(GraphicsContext* context)
-{
-    ASSERT(context);
-    context->restore();
-}
-
 void RenderSVGResourceGradient::addStops(GradientData* gradientData, const Vector<Gradient::ColorStop>& stops) const
 {
     ASSERT(gradientData->gradient);