Add GlyphMetricsMap memory consumption to memory-infra tracing

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

 /*
  * Copyright (C) 2006, 2008 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2007-2008 Torch Mobile, Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 136 matching lines @@
     };
     static void getFontForCharacter(UChar32, const char* preferredLocale, PlatformFallbackFont*);
 #endif
     PassRefPtr<SimpleFontData> fontDataFromFontPlatformData(const FontPlatformData*, ShouldRetain = Retain);
 
     void invalidateShapeCache();
 
     // Memory reporting
     void dumpFontPlatformDataCache(base::trace_event::ProcessMemoryDump*);
     void dumpShapeResultCache(base::trace_event::ProcessMemoryDump*);
+    void dumpFontDataCache(base::trace_event::ProcessMemoryDump*);
 
 private:
     FontCache();
     ~FontCache();
 
     void purge(PurgeSeverity = PurgeIfNeeded);
 
     void disablePurging() { m_purgePreventCount++; }
     void enablePurging()
     {
@@ skipping 50 matching lines @@
 public:
     FontCachePurgePreventer() { FontCache::fontCache()->disablePurging(); }
     ~FontCachePurgePreventer() { FontCache::fontCache()->enablePurging(); }
 };
 
 CString toSkFontMgrLocale(const String& locale);
 
 } // namespace blink
 
 #endif