Add another dollop of sk_sp to SkSpecialImage and SkSpecialSurface

tests/ImageFilterCacheTest.cpp

  /*
   * Copyright 2016 Google Inc.
   *
   * Use of this source code is governed by a BSD-style license that can be
   * found in the LICENSE file.
   */
 
 #include "Test.h"
 
 #include "SkBitmap.h"
@@ skipping 195 matching lines @@
     sk_sp<SkImage> srcImage(SkImage::MakeFromTexture(ctxInfo.fGrContext, backendDesc, kPremul_SkAlphaType));
     if (!srcImage) {
         return;
     }
 
     test_image_backed(reporter, srcImage);
 }
 
 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterCache_GPUBacked, reporter, ctxInfo) {
 
-    SkAutoTUnref<GrTexture> srcTexture(create_texture(ctxInfo.fGrContext));
+    sk_sp<GrTexture> srcTexture(create_texture(ctxInfo.fGrContext));
     if (!srcTexture) {
         return;
     }
 
     const SkIRect& full = SkIRect::MakeWH(kFullSize, kFullSize);
 
     sk_sp<SkSpecialImage> fullImg(SkSpecialImage::MakeFromGpu(full,
                                                               kNeedNewImageUniqueID_SpecialImage,
                                                               srcTexture));
 
     const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
 
     sk_sp<SkSpecialImage> subsetImg(SkSpecialImage::MakeFromGpu(subset,
                                                                 kNeedNewImageUniqueID_SpecialImage,
                                                                 srcTexture));
 
     test_find_existing(reporter, fullImg, subsetImg);
     test_dont_find_if_diff_key(reporter, fullImg, subsetImg);
     test_internal_purge(reporter, fullImg);
     test_explicit_purging(reporter, fullImg, subsetImg);
 }
 #endif