Report decoded webfont blob size to memory-infra

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

 /*
  * Copyright (C) 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 29 matching lines @@
 
 class SharedBuffer;
 
 class WebFontDecoder final {
   STACK_ALLOCATED();
 
  public:
   WebFontDecoder() {}
 
   sk_sp<SkTypeface> decode(SharedBuffer*);
+  size_t decodedSize() const { return m_decodedSize; }
 
   static bool supportsFormat(const String&);
   String getErrorString() const { return m_otsErrorString; }
 
  private:
   void setErrorString(const String& errorString) {
     m_otsErrorString = errorString;
   }
 
   String m_otsErrorString;
+  size_t m_decodedSize = 0;
 };
 
 }  // namespace blink
 
 #endif  // WebFontDecoder_h