switch colorfilters to sk_sp

gm/textbloblooper.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 
 #include "Sk2DPathEffect.h"
@@ skipping 79 matching lines @@
         SK_ColorCYAN, SK_ColorMAGENTA, SK_ColorYELLOW,
     };
     return SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
                                         SkShader::kClamp_TileMode);
 }
 
 static void color_filter(SkPaint* paint) {
     SkRect r;
     r.setWH(SkIntToScalar(kWidth), 50);
     paint->setShader(make_shader(r));
-    paint->setColorFilter(SkColorMatrixFilter::CreateLightingFilter(0xF0F0F0, 0))->unref();
+    paint->setColorFilter(SkColorMatrixFilter::MakeLightingFilter(0xF0F0F0, 0));
 }
 
 static void kitchen_sink(SkPaint* paint) {
     color_filter(paint);
     path_effect(paint);
     mask_filter(paint);
 
 }
 
 static sk_sp<SkDrawLooper> setupLooper(SkLayerDrawLooper::BitFlags bits,
@@ skipping 138 matching lines @@
     SkAutoTUnref<const SkTextBlob> fBlob;
     SkTArray<sk_sp<SkDrawLooper>, true> fLoopers;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new TextBlobLooperGM;)
 }