Remove Mac native font type members from FontPlatformData

Source/platform/fonts/FontCustomPlatformData.cpp

Index: Source/platform/fonts/FontCustomPlatformData.cpp
diff --git a/Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp b/Source/platform/fonts/FontCustomPlatformData.cpp
similarity index 97%
rename from Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp
rename to Source/platform/fonts/FontCustomPlatformData.cpp
index 00bf96da43a4ae3d11567c3b50ba6f0f15c5b90c..b2e54d204548b76e430277a0e086e1c384b1793c 100644
--- a/Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp
+++ b/Source/platform/fonts/FontCustomPlatformData.cpp
@@ -44,11 +44,6 @@
 
 namespace blink {
 
-FontCustomPlatformData::FontCustomPlatformData(PassRefPtr<SkTypeface> typeface)
-    : m_typeface(typeface)
-{
-}
-
 FontCustomPlatformData::~FontCustomPlatformData()
 {
 }