Replace internal uses of BlinkMacSystemFont on Mac with system-ui

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 192 matching lines @@
   void enablePurging() {
     ASSERT(m_purgePreventCount);
     if (!--m_purgePreventCount)
       purge(PurgeIfNeeded);
   }
 
   // FIXME: This method should eventually be removed.
   FontPlatformData* getFontPlatformData(const FontDescription&,
                                         const FontFaceCreationParams&,
                                         bool checkingAlternateName = false);
+#if !OS(MACOSX)
+  FontPlatformData* systemFontPlatformData(const FontDescription&);
+#endif
 
   // These methods are implemented by each platform.
   std::unique_ptr<FontPlatformData> createFontPlatformData(
       const FontDescription&,
       const FontFaceCreationParams&,
       float fontSize);
   std::unique_ptr<FontPlatformData> scaleFontPlatformData(
       const FontPlatformData&,
       const FontDescription&,
       const FontFaceCreationParams&,
@@ skipping 45 matching lines @@
   WTF_MAKE_NONCOPYABLE(FontCachePurgePreventer);
 
  public:
   FontCachePurgePreventer() { FontCache::fontCache()->disablePurging(); }
   ~FontCachePurgePreventer() { FontCache::fontCache()->enablePurging(); }
 };
 
 }  // namespace blink
 
 #endif