switch surface to sk_sp

gm/imagefilters.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 "SkBlurImageFilter.h"
 #include "SkColorMatrixFilter.h"
@@ skipping 50 matching lines @@
             canvas->translate(240, 0);
             do_draw(canvas, modes[i], imf);
             canvas->restore();
 
             canvas->translate(0, 240);
         }
 }
 
 static sk_sp<SkImage> make_image(SkCanvas* canvas) {
     const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
-    SkAutoTUnref<SkSurface> surface(canvas->newSurface(info));
+    auto surface(canvas->makeSurface(info));
     if (!surface) {
-        surface.reset(SkSurface::NewRaster(info));
+        surface = SkSurface::MakeRaster(info);
     }
     surface->getCanvas()->drawRect(SkRect::MakeXYWH(25, 25, 50, 50), SkPaint());
     return surface->makeImageSnapshot();
 }
 
 // Compare blurs when we're tightly clipped (fast) and not as tightly (slower)
 //
 // Expect the two to draw the same (modulo the extra border of pixels when the clip is larger)
 //
 DEF_SIMPLE_GM(fast_slow_blurimagefilter, canvas, 620, 260) {
@@ skipping 87 matching lines @@
         canvas->scale(xform.fSx, xform.fSy);
         canvas->drawImage(image, 0, 0, &paint);
         draw_set(canvas, filters, SK_ARRAY_COUNT(filters));
         canvas->restore();
     }
 
     for (auto& filter : filters) {
         filter->unref();
     }
 }