Split SkFontConfigInterface globals and factory.

include/ports/SkFontMgr_FontConfigInterface.h

Index: include/ports/SkFontMgr_FontConfigInterface.h
diff --git a/include/ports/SkFontMgr_FontConfigInterface.h b/include/ports/SkFontMgr_FontConfigInterface.h
new file mode 100644
index 0000000000000000000000000000000000000000..356e54c87d0b6202035b76884c0b11de71083e76
--- /dev/null
+++ b/include/ports/SkFontMgr_FontConfigInterface.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkFontMgr_FontConfigInterface_DEFINED
+#define SkFontMgr_FontConfigInterface_DEFINED
+
+#include "SkTypes.h"
+#include "SkRefCnt.h"
+
+class SkFontMgr;
+class SkFontConfigInterface;
+
+/** Creates a SkFontMgr which wraps a SkFontConfigInterface. */
+SK_API SkFontMgr* SkFontMgr_New_FCI(sk_sp<SkFontConfigInterface> fci);
+
+#endif // #ifndef SkFontMgr_FontConfigInterface_DEFINED