Fix Google3 fonts.

src/ports/SkFontConfigInterface_direct_factory.cpp

+/*
+ * Copyright 2009-2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* migrated from chrome/src/skia/ext/SkFontHost_fontconfig_direct.cpp */
+
+#include "SkFontConfigInterface_direct.h"
+#include "SkMutex.h"
+
+SkFontConfigInterface* SkFontConfigInterface::GetSingletonDirectInterface(SkBaseMutex* mutex) {
+    SkAutoMutexAcquire ac(mutex);
+    static SkFontConfigInterfaceDirect* singleton = nullptr;
+    if (singleton == nullptr) {
+        singleton = new SkFontConfigInterfaceDirect;
+    }
+    return singleton;
+}