Report decoded webfont blob size to memory-infra

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 46 matching lines @@
       SharedBuffer*,
       String& otsParseMessage);
   ~FontCustomPlatformData();
 
   FontPlatformData fontPlatformData(
       float size,
       bool bold,
       bool italic,
       FontOrientation = FontOrientation::Horizontal);
 
+  size_t dataSize() const { return m_dataSize; }
   static bool supportsFormat(const String&);
 
  private:
-  explicit FontCustomPlatformData(sk_sp<SkTypeface>);
+  FontCustomPlatformData(sk_sp<SkTypeface>, size_t dataSize);
   sk_sp<SkTypeface> m_typeface;
+  size_t m_dataSize;
 };
 
 }  // namespace blink
 
 #endif  // FontCustomPlatformData_h