partial switch over to sp usage of shaders

gm/glyph_pos_align.cpp

Index: gm/glyph_pos_align.cpp
diff --git a/gm/glyph_pos_align.cpp b/gm/glyph_pos_align.cpp
index e80955e1acc91d121b1ed663a1e2bc904db71cec..0ac877d0d0a2d3855e98b847bd2ea6185f448cc3 100644
--- a/gm/glyph_pos_align.cpp
+++ b/gm/glyph_pos_align.cpp
@@ -25,12 +25,8 @@ DEF_SIMPLE_GM_BG(glyph_pos_align, canvas, kWidth, kHeight, SK_ColorBLACK) {
         paint.setFakeBoldText(true);
         const SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE };
         const SkPoint pts[] = {{0, 0}, {kWidth, kHeight}};
-        SkAutoTUnref<SkShader> grad(SkGradientShader::CreateLinear(pts, colors, nullptr,
-                                                                   SK_ARRAY_COUNT(colors),
-                                                                   SkShader::kMirror_TileMode));
-        paint.setShader(grad);
-
-
+        paint.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
+                                                     SkShader::kMirror_TileMode));
         paint.setTextAlign(SkPaint::kRight_Align);
         drawTestCase(canvas, "Right Align", kTextHeight, paint);