[DO NOT COMMIT] Trace events for layout-based First Meaningful Paint detection

third_party/WebKit/Source/core/css/CSSFontSelector.cpp

 /*
  * Copyright (C) 2007, 2008, 2011 Apple Inc. All rights reserved.
  *           (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 115 matching lines @@
         return face->getFontData(fontDescription);
 
     // Try to return the correct font based off our settings, in case we were handed the generic font family name.
     AtomicString settingsFamilyName = familyNameFromSettings(m_genericFontFamilySettings, fontDescription, familyName);
     if (settingsFamilyName.isEmpty())
         return nullptr;
 
     return FontCache::fontCache()->getFontData(fontDescription, settingsFamilyName);
 }
 
-void CSSFontSelector::willUseFontData(const FontDescription& fontDescription, const AtomicString& family, UChar32 character)
+void CSSFontSelector::willUseFontData(const FontDescription& fontDescription, const AtomicString& family, const String& text)
 {
     CSSSegmentedFontFace* face = m_fontFaceCache.get(fontDescription, family);
     if (face)
-        face->willUseFontData(fontDescription, character);
+        face->willUseFontData(fontDescription, text);
 }
 
 void CSSFontSelector::willUseRange(const FontDescription& fontDescription, const AtomicString& family, const FontDataForRangeSet& rangeSet)
 {
     CSSSegmentedFontFace* face = m_fontFaceCache.get(fontDescription, family);
     if (face)
         face->willUseRange(fontDescription, rangeSet);
 }
 
 bool CSSFontSelector::isPlatformFontAvailable(const FontDescription& fontDescription, const AtomicString& passedFamily)
@@ skipping 14 matching lines @@
 
 DEFINE_TRACE(CSSFontSelector)
 {
     visitor->trace(m_document);
     visitor->trace(m_fontFaceCache);
     visitor->trace(m_clients);
     FontSelector::trace(visitor);
 }
 
 } // namespace blink