Make FreeType usable on Windows.

src/ports/SkFontMgr_custom_empty_factory.cpp

Index: src/ports/SkFontMgr_custom_empty_factory.cpp
diff --git a/src/ports/SkFontMgr_fontconfig_factory.cpp b/src/ports/SkFontMgr_custom_empty_factory.cpp
similarity index 57%
copy from src/ports/SkFontMgr_fontconfig_factory.cpp
copy to src/ports/SkFontMgr_custom_empty_factory.cpp
index cdf055608d5477d2e4762dae1dbeacef6490850b..c9487cdcc717823ee22dbfa29e0abbec207dc815 100644
--- a/src/ports/SkFontMgr_fontconfig_factory.cpp
+++ b/src/ports/SkFontMgr_custom_empty_factory.cpp
@@ -1,14 +1,13 @@
 /*
- * Copyright 2015 Google Inc.
+ * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkFontMgr.h"
-#include "SkFontMgr_fontconfig.h"
-#include "SkTypes.h"
+#include "SkFontMgr_custom.h"
 
 SkFontMgr* SkFontMgr::Factory() {
-    return SkFontMgr_New_FontConfig(nullptr);
+    return SkFontMgr_New_Custom_Empty();
 }