switch surface to sk_sp

gm/localmatriximagefilter.cpp

 /*
  * Copyright 2015 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 "SkCanvas.h"
 #include "SkBlurImageFilter.h"
 #include "SkColorFilterImageFilter.h"
 #include "SkModeColorFilter.h"
 #include "SkMorphologyImageFilter.h"
 #include "SkOffsetImageFilter.h"
 #include "SkSurface.h"
 
 static sk_sp<SkImage> make_image(SkCanvas* rootCanvas) {
     SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
-    SkAutoTUnref<SkSurface> surface(rootCanvas->newSurface(info));
+    auto surface(rootCanvas->makeSurface(info));
     if (!surface) {
-        surface.reset(SkSurface::NewRaster(info));
+        surface = SkSurface::MakeRaster(info);
     }
 
     SkPaint paint;
     paint.setAntiAlias(true);
     paint.setColor(SK_ColorRED);
     surface->getCanvas()->drawCircle(50, 50, 50, paint);
     return surface->makeImageSnapshot();
 }
 
 typedef SkImageFilter* (*ImageFilterFactory)();
@@ skipping 61 matching lines @@
             canvas->restore();
             canvas->translate(0, spacer);
         }
     }
 
 private:
     typedef GM INHERITED;
 };
 DEF_GM( return new LocalMatrixImageFilterGM; )