allow both GDI and DW fontmgrs at the same time

src/ports/SkFontHost_win.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkAdvancedTypefaceMetrics.h"
 #include "SkBase64.h"
@@ skipping 2362 matching lines @@
     SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
     return stream.get() ? CreateTypefaceFromStream(stream) : NULL;
 }
 
 SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) {
     return create_from_stream(stream);
 }
 
 #endif
 
-SkFontMgr* SkFontMgr::Factory() {
+extern SkFontMgr* SkFontMgr_New_GDI();
+extern SkFontMgr* SkFontMgr_New_DirectWrite();
+
+SkFontMgr* SkFontMgr_New_GDI() {
     return SkNEW(SkFontMgrGDI);
 }
+
+
+SkFontMgr* SkFontMgr::Factory() {
+    return SkFontMgr_New_GDI();
+}