Introduce SVGPaintServer

Source/core/rendering/svg/RenderSVGResourcePattern.cpp

Index: Source/core/rendering/svg/RenderSVGResourcePattern.cpp
diff --git a/Source/core/rendering/svg/RenderSVGResourcePattern.cpp b/Source/core/rendering/svg/RenderSVGResourcePattern.cpp
index 19a1a1b5493cdd1cb7610193540cf9d432094001..adac1c24274e5a4ebb50c5f8e7692ced936e3abf 100644
--- a/Source/core/rendering/svg/RenderSVGResourcePattern.cpp
+++ b/Source/core/rendering/svg/RenderSVGResourcePattern.cpp
@@ -19,11 +19,10 @@
  */
 
 #include "config.h"
-
 #include "core/rendering/svg/RenderSVGResourcePattern.h"
 
 #include "core/dom/ElementTraversal.h"
-#include "core/rendering/svg/SVGRenderSupport.h"
+#include "core/paint/SVGPaintServer.h"
 #include "core/rendering/svg/SVGRenderingContext.h"
 #include "core/svg/SVGFitToViewBox.h"
 #include "platform/graphics/GraphicsContext.h"
@@ -112,11 +111,10 @@ PatternData* RenderSVGResourcePattern::buildPattern(RenderObject* object, const
     return m_patternMap.set(object, patternData.release()).storedValue->value.get();
 }
 
-bool RenderSVGResourcePattern::applyResource(RenderObject* object, RenderStyle* style, GraphicsContext* context, RenderSVGResourceModeFlags resourceMode)
+bool RenderSVGResourcePattern::preparePaintServer(RenderObject* object, RenderStyle* style, RenderSVGResourceModeFlags resourceMode, SVGPaintServer& paintServer)
 {
     ASSERT(object);
     ASSERT(style);
-    ASSERT(context);
 
     clearInvalidationMask();
 
@@ -147,24 +145,10 @@ bool RenderSVGResourcePattern::applyResource(RenderObject* object, RenderStyle*
     AffineTransform computedPatternSpaceTransform = computeResourceSpaceTransform(object, patternData->transform, svgStyle, resourceMode);
     patternData->pattern->setPatternSpaceTransform(computedPatternSpaceTransform);
 
-    // Draw pattern
-    context->save();
-
-    if (resourceMode & ApplyToFillMode)
-        context->setFillPattern(patternData->pattern);
-    else if (resourceMode & ApplyToStrokeMode)
-        context->setStrokePattern(patternData->pattern);
-
-    updateGraphicsContext(context, style, *object, resourceMode);
+    paintServer.setPattern(patternData->pattern);
     return true;
 }
 
-void RenderSVGResourcePattern::postApplyResource(GraphicsContext* context)
-{
-    ASSERT(context);
-    context->restore();
-}
-
 static inline FloatRect calculatePatternBoundaries(const PatternAttributes& attributes,
                                                    const FloatRect& objectBoundingBox,
                                                    const SVGPatternElement* patternElement)