switch surface to sk_sp

bench/SKPBench.cpp

Index: bench/SKPBench.cpp
diff --git a/bench/SKPBench.cpp b/bench/SKPBench.cpp
index 1d378b5046267ed5bd8c9ca89ab8abc4761b255e..add415dcb85404e048642db59fa14607968d2cb3 100644
--- a/bench/SKPBench.cpp
+++ b/bench/SKPBench.cpp
@@ -72,7 +72,7 @@ void SKPBench::onPerCanvasPreDraw(SkCanvas* canvas) {
         for (int x = bounds.fLeft; x < bounds.fRight; x += tileW) {
             const SkIRect tileRect = SkIRect::MakeXYWH(x, y, tileW, tileH);
             *fTileRects.append() = tileRect;
-            *fSurfaces.push() = canvas->newSurface(ii);
+            *fSurfaces.push() = canvas->makeSurface(ii).release();
 
             // Never want the contents of a tile to include stuff the parent
             // canvas clips out