Always use original ascent/descent for FontMetrics::floatAscent|floatDescent

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 190 matching lines @@
     int ttcIndex;
     bool isBold;
     bool isItalic;
   };
   static void getFontForCharacter(UChar32,
                                   const char* preferredLocale,
                                   PlatformFallbackFont*);
 #endif
   PassRefPtr<SimpleFontData> fontDataFromFontPlatformData(
       const FontPlatformData*,
-      ShouldRetain = Retain,
-      bool = false);
+      ShouldRetain = Retain);
 
   void invalidateShapeCache();
 
   static void crashWithFontInfo(const FontDescription*);
 
   // Memory reporting
   void dumpFontPlatformDataCache(base::trace_event::ProcessMemoryDump*);
   void dumpShapeResultCache(base::trace_event::ProcessMemoryDump*);
 
  private:
@@ skipping 79 matching lines @@
  public:
   FontCachePurgePreventer() { FontCache::fontCache()->disablePurging(); }
   ~FontCachePurgePreventer() { FontCache::fontCache()->enablePurging(); }
 };
 
 AtomicString toAtomicString(const SkString&);
 
 }  // namespace blink
 
 #endif