switch surface to sk_sp

gm/imagesource2.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 "SkImage.h"
 #include "SkImageSource.h"
@@ skipping 23 matching lines @@
         static const SkPMColor gColors[] = {
             SK_ColorRED,     SK_ColorGRAY,
             SK_ColorGREEN,   SK_ColorGRAY,
             SK_ColorBLUE,    SK_ColorGRAY,
             SK_ColorCYAN,    SK_ColorGRAY,
             SK_ColorMAGENTA, SK_ColorGRAY,
             SK_ColorYELLOW,  SK_ColorGRAY,
             SK_ColorWHITE,   SK_ColorGRAY,
         };
 
-        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(kImageSize, kImageSize));
+        auto surface(SkSurface::MakeRasterN32Premul(kImageSize, kImageSize));
         SkCanvas* canvas = surface->getCanvas();
 
         int curColor = 0;
 
         for (int x = 0; x < kImageSize; x += 3) {
             SkRect r = SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(0), 
                                         SkIntToScalar(3), SkIntToScalar(kImageSize));
             SkPaint p;
             p.setColor(gColors[curColor]);
             canvas->drawRect(r, p);
@@ skipping 29 matching lines @@
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new ImageSourceGM("none", kNone_SkFilterQuality);)
 DEF_GM(return new ImageSourceGM("low", kLow_SkFilterQuality);)
 DEF_GM(return new ImageSourceGM("med", kMedium_SkFilterQuality);)
 DEF_GM(return new ImageSourceGM("high", kHigh_SkFilterQuality);)
 }