Use sk_sp-based shader creation APIs

skia/ext/pixel_ref_utils_unittest.cc

Index: skia/ext/pixel_ref_utils_unittest.cc
diff --git a/skia/ext/pixel_ref_utils_unittest.cc b/skia/ext/pixel_ref_utils_unittest.cc
index dc28cfe22721a9c6ebbd2e9488a02d74438fff90..80b53ad1a72e241e475c97f6b71080d88a80a8b6 100644
--- a/skia/ext/pixel_ref_utils_unittest.cc
+++ b/skia/ext/pixel_ref_utils_unittest.cc
@@ -41,9 +41,8 @@ skia::RefPtr<SkImage> CreateDiscardableImage(const gfx::Size& size) {
 
 void SetDiscardableShader(SkPaint* paint) {
   skia::RefPtr<SkImage> image = CreateDiscardableImage(gfx::Size(50, 50));
-  skia::RefPtr<SkShader> shader = skia::AdoptRef(
-      image->newShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode));
-  paint->setShader(shader.get());
+  paint->setShader(
+      image->makeShader(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode));
 }
 
 SkCanvas* StartRecording(SkPictureRecorder* recorder, gfx::Rect layer_rect) {