Reland of "more shader-->sp conversions (patchset #5 id:80001 of https://codereview.chromium.org/1789633002/ )"

This reverts commit 9283d20afc27571f7a871d1bd1100dd5df584941.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1793303002

Review URL: https://codereview.chromium.org/1793303002
diff --git a/tests/DrawBitmapRectTest.cpp b/tests/DrawBitmapRectTest.cpp
index 88b9437..8928d4c 100644
--- a/tests/DrawBitmapRectTest.cpp
+++ b/tests/DrawBitmapRectTest.cpp
@@ -195,11 +195,9 @@
                   0.0078740157f,
                   SkIntToScalar(239),
                   0, 0, SK_Scalar1);
-    SkShader* s = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
-                                               SkShader::kRepeat_TileMode, &matrix);
-
     SkPaint paint;
-    paint.setShader(s)->unref();
+    paint.setShader(SkShader::MakeBitmapShader(bm, SkShader::kRepeat_TileMode,
+                                               SkShader::kRepeat_TileMode, &matrix));
 
     SkRect r = SkRect::MakeXYWH(681, 239, 695, 253);
     c.drawRect(r, paint);