Add DisplayItemListPictureRecorder

Source/core/layout/svg/LayoutSVGResourceMasker.cpp

Index: Source/core/layout/svg/LayoutSVGResourceMasker.cpp
diff --git a/Source/core/layout/svg/LayoutSVGResourceMasker.cpp b/Source/core/layout/svg/LayoutSVGResourceMasker.cpp
index 90a30b24d69c20e1022a8a323c06742ecf7a2545..18b5f49910bd471f1ca362a633938f8fd57b706c 100644
--- a/Source/core/layout/svg/LayoutSVGResourceMasker.cpp
+++ b/Source/core/layout/svg/LayoutSVGResourceMasker.cpp
@@ -24,7 +24,7 @@
 #include "core/layout/svg/SVGLayoutSupport.h"
 #include "core/paint/SVGPaintContext.h"
 #include "core/svg/SVGElement.h"
-#include "platform/graphics/paint/DisplayItemList.h"
+#include "platform/graphics/paint/DisplayItemListPictureRecorder.h"
 #include "platform/transforms/AffineTransform.h"
 #include "third_party/skia/include/core/SkPicture.h"
 
@@ -70,11 +70,8 @@ PassRefPtr<const SkPicture> LayoutSVGResourceMasker::createContentPicture(Affine
     // userSpaceOnUse units (http://crbug.com/294900).
     FloatRect bounds = strokeBoundingBox();
 
-    OwnPtr<DisplayItemList> displayItemList;
-    if (RuntimeEnabledFeatures::slimmingPaintEnabled())
-        displayItemList = DisplayItemList::create();
-    GraphicsContext context(nullptr, displayItemList.get());
-    context.beginRecording(bounds);
+    DisplayItemListPictureRecorder pictureRecorder(bounds);
+    GraphicsContext& context = pictureRecorder.context();
 
     ColorFilter maskContentFilter = style()->svgStyle().colorInterpolation() == CI_LINEARRGB
         ? ColorFilterSRGBToLinearRGB : ColorFilterNone;
@@ -91,9 +88,7 @@ PassRefPtr<const SkPicture> LayoutSVGResourceMasker::createContentPicture(Affine
         SVGPaintContext::paintSubtree(&context, layoutObject);
     }
 
-    if (displayItemList)
-        displayItemList->replay(&context);
-    m_maskContentPicture = context.endRecording();
+    m_maskContentPicture = pictureRecorder.endRecording();
     return m_maskContentPicture;
 }