RemoteFontFaceSource should keep FontCustomPlatformData over FontResource revalidation

third_party/WebKit/Source/platform/fonts/FontCustomPlatformData.h

 /*
  * Copyright (C) 2007 Apple Computer, Inc.
  * Copyright (c) 2007, 2008, 2009, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 20 matching lines @@
 
 #ifndef FontCustomPlatformData_h
 #define FontCustomPlatformData_h
 
 #include "platform/PlatformExport.h"
 #include "platform/fonts/FontOrientation.h"
 #include "third_party/skia/include/core/SkRefCnt.h"
 #include "wtf/Allocator.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
+#include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
-#include <memory>
 
 class SkTypeface;
 
 namespace blink {
 
 class FontPlatformData;
 class SharedBuffer;
 class FontVariationSettings;
 
-class PLATFORM_EXPORT FontCustomPlatformData {
+class PLATFORM_EXPORT FontCustomPlatformData
+    : public RefCounted<FontCustomPlatformData> {
   USING_FAST_MALLOC(FontCustomPlatformData);
   WTF_MAKE_NONCOPYABLE(FontCustomPlatformData);
 
  public:
-  static std::unique_ptr<FontCustomPlatformData> create(
-      SharedBuffer*,
-      String& otsParseMessage);
+  static PassRefPtr<FontCustomPlatformData> create(SharedBuffer*,
+                                                   String& otsParseMessage);
   ~FontCustomPlatformData();
 
   FontPlatformData fontPlatformData(
       float size,
       bool bold,
       bool italic,
       FontOrientation = FontOrientation::Horizontal,
       const FontVariationSettings* = nullptr);
 
   size_t dataSize() const { return m_dataSize; }
   static bool supportsFormat(const String&);
 
  private:
   FontCustomPlatformData(sk_sp<SkTypeface>, size_t dataSize);
   sk_sp<SkTypeface> m_baseTypeface;
   size_t m_dataSize;
 };
 
 }  // namespace blink
 
 #endif  // FontCustomPlatformData_h