Make sp variants for SkData

src/ports/SkImageDecoder_CG.cpp

 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
 
@@ skipping 18 matching lines @@
 #include <MobileCoreServices/MobileCoreServices.h>
 #endif
 
 static void data_unref_proc(void* skdata, const void*, size_t) {
     SkASSERT(skdata);
     static_cast<SkData*>(skdata)->unref();
 }
 
 static CGDataProviderRef SkStreamToDataProvider(SkStream* stream) {
     // TODO: use callbacks, so we don't have to load all the data into RAM
-    SkData* skdata = SkCopyStreamToData(stream);
+    SkData* skdata = SkCopyStreamToData(stream).release();
     if (!skdata) {
         return nullptr;
     }
 
     return CGDataProviderCreateWithData(skdata, skdata->data(), skdata->size(), data_unref_proc);
 }
 
 static CGImageSourceRef SkStreamToCGImageSource(SkStream* stream) {
     CGDataProviderRef data = SkStreamToDataProvider(stream);
     if (!data) {
@@ skipping 352 matching lines @@
     const CFStringRef name = CGImageSourceGetType(imageSrc);
     if (nullptr == name) {
         return SkImageDecoder::kUnknown_Format;
     }
     return UTType_to_Format(name);
 }
 
 static SkImageDecoder_FormatReg gFormatReg(get_format_cg);
 
 #endif//defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)