switch colorfilters to sk_sp

tests/PaintTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
 #include "SkLayerDrawLooper.h"
@@ skipping 342 matching lines @@
 
     paint.setAlpha(0xFF);
     paint.setXfermodeMode(SkXfermode::kDst_Mode);
     REPORTER_ASSERT(r, paint.nothingToDraw());
 
     paint.setAlpha(0);
     paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
 
     SkColorMatrix cm;
     cm.setIdentity();   // does not change alpha
-    paint.setColorFilter(SkColorMatrixFilter::Create(cm))->unref();
+    paint.setColorFilter(SkColorFilter::MakeMatrixFilterRowMajor255(cm.fMat));
     REPORTER_ASSERT(r, paint.nothingToDraw());
 
     cm.postTranslate(0, 0, 0, 1);    // wacks alpha
-    paint.setColorFilter(SkColorMatrixFilter::Create(cm))->unref();
+    paint.setColorFilter(SkColorFilter::MakeMatrixFilterRowMajor255(cm.fMat));
     REPORTER_ASSERT(r, !paint.nothingToDraw());
 }