change SkStreams to work with sk_sp<SkData> instead of SkData*

src/ports/SkFontMgr_win_dw.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * 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_WIN32)
 
@@ skipping 911 matching lines @@
                                                   autoUnregisterFontFileLoader.detatch(),
                                                   autoUnregisterFontCollectionLoader.detatch());
             }
         }
     }
 
     return nullptr;
 }
 
 SkTypeface* SkFontMgr_DirectWrite::onCreateFromData(SkData* data, int ttcIndex) const {
-    return this->createFromStream(new SkMemoryStream(data), ttcIndex);
+    return this->createFromStream(new SkMemoryStream(sk_ref_sp(data)), ttcIndex);
 }
 
 SkTypeface* SkFontMgr_DirectWrite::onCreateFromFile(const char path[], int ttcIndex) const {
     return this->createFromStream(SkStream::NewFromFile(path), ttcIndex);
 }
 
 HRESULT SkFontMgr_DirectWrite::getByFamilyName(const WCHAR wideFamilyName[],
                                                IDWriteFontFamily** fontFamily) const {
     UINT32 index;
     BOOL exists;
@@ skipping 143 matching lines @@
 
 #include "SkFontMgr_indirect.h"
 SK_API SkFontMgr* SkFontMgr_New_DirectWriteRenderer(SkRemotableFontMgr* proxy) {
     SkAutoTUnref<SkFontMgr> impl(SkFontMgr_New_DirectWrite());
     if (impl.get() == nullptr) {
         return nullptr;
     }
     return new SkFontMgr_Indirect(impl.get(), proxy);
 }
 #endif//defined(SK_BUILD_FOR_WIN32)