Revert of Remove Mac native font type members from FontPlatformData

Source/platform/blink_platform.gypi

 {
   'includes': [
     'platform_generated.gypi',
   ],
   'variables': {
     'platform_files': [
       'AsyncFileSystemCallbacks.h',
       'CalculationValue.h',
       'CheckedInt.h',
       'Clock.cpp',
@@ skipping 340 matching lines @@
       'fonts/CustomFontData.h',
       'fonts/FixedPitchFontType.h',
       'fonts/Font.cpp',
       'fonts/Font.h',
       'fonts/FontBaseline.h',
       'fonts/FontCache.cpp',
       'fonts/FontCache.h',
       'fonts/FontCacheClient.h',
       'fonts/FontCacheKey.h',
       'fonts/FontCustomPlatformData.h',
-      'fonts/FontCustomPlatformData.cpp',
       'fonts/FontData.cpp',
       'fonts/FontData.h',
       'fonts/FontDataCache.cpp',
       'fonts/FontDataCache.h',
       'fonts/FontDescription.cpp',
       'fonts/FontFaceCreationParams.h',
       'fonts/FontFallbackList.cpp',
       'fonts/FontFallbackList.h',
       'fonts/FontFamily.cpp',
       'fonts/FontFamily.h',
@@ skipping 17 matching lines @@
       'fonts/TextBlob.h',
       'fonts/VDMXParser.cpp',
       'fonts/VDMXParser.h',
       'fonts/WidthCache.h',
       'fonts/android/FontCacheAndroid.cpp',
       'fonts/linux/FontCacheLinux.cpp',
       'fonts/linux/FontPlatformDataLinux.cpp',
       'fonts/mac/FontFamilyMatcherMac.h',
       'fonts/mac/FontFamilyMatcherMac.mm',
       'fonts/mac/FontCacheMac.mm',
+      'fonts/mac/FontCustomPlatformDataMac.cpp',
       'fonts/mac/FontPlatformDataMac.mm',
+      'fonts/mac/MemoryActivatedFont.h',
+      'fonts/mac/MemoryActivatedFont.mm',
       'fonts/opentype/OpenTypeSanitizer.cpp',
       'fonts/opentype/OpenTypeSanitizer.h',
       'fonts/opentype/OpenTypeTypes.h',
       'fonts/opentype/OpenTypeVerticalData.cpp',
       'fonts/opentype/OpenTypeVerticalData.h',
       'fonts/shaping/HarfBuzzFace.cpp',
       'fonts/shaping/HarfBuzzFace.h',
       'fonts/shaping/HarfBuzzShaper.cpp',
       'fonts/shaping/HarfBuzzShaper.h',
       'fonts/shaping/Shaper.cpp',
       'fonts/shaping/Shaper.h',
       'fonts/shaping/SimpleShaper.cpp',
       'fonts/shaping/SimpleShaper.h',
       'fonts/skia/FontCacheSkia.cpp',
+      'fonts/skia/FontCustomPlatformDataSkia.cpp',
       'fonts/win/FontCacheSkiaWin.cpp',
       'fonts/win/FontFallbackWin.cpp',
       'fonts/win/FontFallbackWin.h',
       'fonts/win/FontPlatformDataWin.cpp',
       'geometry/DoublePoint.cpp',
       'geometry/DoublePoint.h',
       'geometry/DoubleSize.cpp',
       'geometry/DoubleSize.h',
       'geometry/FloatRectOutsets.h',
       'geometry/FloatPoint.cpp',
@@ skipping 576 matching lines @@
       'image-decoders/webp/WEBPImageDecoderTest.cpp',
     ],
     'platform_unittest_support_files': [
       'testing/URLTestHelpers.cpp',
       'testing/URLTestHelpers.h',
       'testing/UnitTestHelpers.cpp',
       'testing/UnitTestHelpers.h',
     ],
   },
 }