change flattenable factory to return sk_sp

tools/debugger/SkDrawCommand.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkDrawCommand.h"
 
@@ skipping 708 matching lines @@
     }
     const char* name = jsonFlattenable[SKDEBUGCANVAS_ATTRIBUTE_NAME].asCString();
     SkFlattenable::Factory factory = SkFlattenable::NameToFactory(name);
     if (factory == nullptr) {
         SkDebugf("no factory for loading '%s'\n", name);
         return nullptr;
     }
     const void* data;
     int size = decode_data(jsonFlattenable[SKDEBUGCANVAS_ATTRIBUTE_DATA], urlDataManager, &data);
     SkValidatingReadBuffer buffer(data, size);
-    SkFlattenable* result = factory(buffer);
+    sk_sp<SkFlattenable> result = factory(buffer);
     if (!buffer.isValid()) {
         SkDebugf("invalid buffer loading flattenable\n");
         return nullptr;
     }
-    return result;
+    return result.release();
 }
 
 static SkColorType colortype_from_name(const char* name) {
     if (!strcmp(name, SKDEBUGCANVAS_COLORTYPE_ARGB4444)) {
         return kARGB_4444_SkColorType;
     }
     else if (!strcmp(name, SKDEBUGCANVAS_COLORTYPE_RGBA8888)) {
         return kRGBA_8888_SkColorType;
     }
     else if (!strcmp(name, SKDEBUGCANVAS_COLORTYPE_BGRA8888)) {
@@ skipping 2382 matching lines @@
     result[SKDEBUGCANVAS_ATTRIBUTE_MATRIX] = MakeJsonMatrix(fMatrix);
     return result;
 }
 
 SkSetMatrixCommand* SkSetMatrixCommand::fromJSON(Json::Value& command,
                                                  UrlDataManager& urlDataManager) {
     SkMatrix matrix;
     extract_json_matrix(command[SKDEBUGCANVAS_ATTRIBUTE_MATRIX], &matrix);
     return new SkSetMatrixCommand(matrix);
 }