SkImage now has makeShader to return sk_sp

gm/SkLinearBitmapPipelineGM.cpp

Index: gm/SkLinearBitmapPipelineGM.cpp
diff --git a/gm/SkLinearBitmapPipelineGM.cpp b/gm/SkLinearBitmapPipelineGM.cpp
index d3a143c5c10ffdf3e65ef44ae29ddd57d769adfa..e93d2ac4c3b869218e8e8dbc0713f84abf416805 100644
--- a/gm/SkLinearBitmapPipelineGM.cpp
+++ b/gm/SkLinearBitmapPipelineGM.cpp
@@ -61,13 +61,12 @@ static void draw_rect_orig(SkCanvas* canvas, const SkRect& r, SkColor c, const S
         info, pmsrc.addr32(), pmsrc.rowBytes())};
     SkPaint paint;
     int32_t storage[300];
-    SkShader* shader = image->newShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode);
+    paint.setShader(image->makeShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode));
     if (useBilerp) {
         paint.setFilterQuality(SkFilterQuality::kLow_SkFilterQuality);
     } else {
         paint.setFilterQuality(SkFilterQuality::kNone_SkFilterQuality);
     }
-    paint.setShader(shader)->unref();
     const SkShader::ContextRec rec(paint, *mat, nullptr,
                                    SkBlitter::PreferredShaderDest(pmsrc.info()));
     SkASSERT(paint.getShader()->contextSize(rec) <= sizeof(storage));