Revert "Removing ref counting from GrXPFactory."

This reverts commit a8f80de2bc17672b4b6f26d3cf6b38123ac850c9.

Reason for revert: nanobench failing on windows bots, possibly others

Change-Id: Iacb8c650064a28654c165665be057377ffb02ba5
Reviewed-on: https://skia-review.googlesource.com/6802
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
diff --git a/src/gpu/GrReducedClip.cpp b/src/gpu/GrReducedClip.cpp
index 9f3b225..9802f87 100644
--- a/src/gpu/GrReducedClip.cpp
+++ b/src/gpu/GrReducedClip.cpp
@@ -780,7 +780,7 @@
                     GrShape shape(clipPath, GrStyle::SimpleFill());
                     if (canRenderDirectToStencil) {
                         GrPaint paint;
-                        paint.setXPFactory(GrDisableColorXPFactory::Get());
+                        paint.setXPFactory(GrDisableColorXPFactory::Make());
 
                         GrPathRenderer::DrawPathArgs args;
                         args.fResourceProvider = context->resourceProvider();
@@ -817,7 +817,7 @@
                 } else {
                     GrShape shape(clipPath, GrStyle::SimpleFill());
                     GrPaint paint;
-                    paint.setXPFactory(GrDisableColorXPFactory::Get());
+                    paint.setXPFactory(GrDisableColorXPFactory::Make());
                     GrPathRenderer::DrawPathArgs args;
                     args.fResourceProvider = context->resourceProvider();
                     args.fPaint = &paint;