change flattenable factory to return sk_sp

tests/QuickRejectTest.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 "SkCanvas.h"
 #include "SkDrawLooper.h"
 #include "SkTypes.h"
@@ skipping 31 matching lines @@
                 canvas->translate(SkIntToScalar(10), 0);
                 return true;
             }
             return false;
         }
     private:
         bool fOnce;
     };
 };
 
-SkFlattenable* TestLooper::CreateProc(SkReadBuffer&) { return new TestLooper; }
+sk_sp<SkFlattenable> TestLooper::CreateProc(SkReadBuffer&) { return sk_make_sp<TestLooper>(); }
 
 static void test_drawBitmap(skiatest::Reporter* reporter) {
     SkBitmap src;
     src.allocN32Pixels(10, 10);
     src.eraseColor(SK_ColorWHITE);
 
     SkBitmap dst;
     dst.allocN32Pixels(10, 10);
     dst.eraseColor(SK_ColorTRANSPARENT);
 
@@ skipping 37 matching lines @@
     SkRect bounds = SkRect::MakeLTRB(50, 50, 70, 70);
     canvas.saveLayer(&bounds, nullptr);
     REPORTER_ASSERT(reporter, true == canvas.quickReject(SkRect::MakeWH(10, 10)));
     REPORTER_ASSERT(reporter, false == canvas.quickReject(SkRect::MakeWH(60, 60)));
 }
 
 DEF_TEST(QuickReject, reporter) {
     test_drawBitmap(reporter);
     test_layers(reporter);
 }