Remove FontPlatformData::m_widthVariant.

Source/platform/fonts/mac/FontCacheMac.mm

Index: Source/platform/fonts/mac/FontCacheMac.mm
diff --git a/Source/platform/fonts/mac/FontCacheMac.mm b/Source/platform/fonts/mac/FontCacheMac.mm
index 6e4dc59b4607f0cc5ceeeba9e145dbc48604ecaa..8f8e718971f2c5d8f711f45ef3cb2705c324af67 100644
--- a/Source/platform/fonts/mac/FontCacheMac.mm
+++ b/Source/platform/fonts/mac/FontCacheMac.mm
@@ -224,7 +224,7 @@ FontPlatformData* FontCache::createFontPlatformData(const FontDescription& fontD
 
     // FontPlatformData::font() can be null for the case of Chromium out-of-process font loading.
     // In that case, we don't want to use the platformData.
-    OwnPtr<FontPlatformData> platformData = adoptPtr(new FontPlatformData(platformFont, size, syntheticBold, syntheticItalic, fontDescription.orientation(), fontDescription.widthVariant()));
+    OwnPtr<FontPlatformData> platformData = adoptPtr(new FontPlatformData(platformFont, size, syntheticBold, syntheticItalic, fontDescription.orientation()));
     if (!platformData->font())
         return 0;
     return platformData.leakPtr();