Use SkFontMgr for webfont construction on windows

Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp

Index: Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp
diff --git a/Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp b/Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp
index 87d8a01230d28beffae12e228408905eed13c425..b175fc0885265e3a3a8735565e1cdc75bf28a60e 100644
--- a/Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp
+++ b/Source/platform/fonts/skia/FontCustomPlatformDataSkia.cpp
@@ -35,6 +35,7 @@
 
 #include "platform/LayoutTestSupport.h"
 #include "platform/SharedBuffer.h"
+#include "platform/fonts/FontCache.h"
 #include "platform/fonts/FontPlatformData.h"
 #include "platform/fonts/opentype/OpenTypeSanitizer.h"
 #include "third_party/skia/include/core/SkStream.h"
@@ -69,7 +70,11 @@ PassOwnPtr<FontCustomPlatformData> FontCustomPlatformData::create(SharedBuffer*
     buffer = transcodeBuffer.get();
 
     RefPtr<SkMemoryStream> stream = adoptRef(new SkMemoryStream(buffer->getAsSkData().get()));
+#if OS(WIN) && !ENABLE(GDI_FONTS_ON_WINDOWS)
+    RefPtr<SkTypeface> typeface = adoptRef(FontCache::fontCache()->fontManager()->createFromStream(stream.get()));
+#else
     RefPtr<SkTypeface> typeface = adoptRef(SkTypeface::CreateFromStream(stream.get()));
+#endif
     if (!typeface)
         return nullptr;