Fix code guarded by SK_FONT_HOST_USE_SYSTEM_SETTINGS.

src/ports/SkTypeface_win_dw.cpp

Index: src/ports/SkTypeface_win_dw.cpp
diff --git a/src/ports/SkTypeface_win_dw.cpp b/src/ports/SkTypeface_win_dw.cpp
index 0f22e471cfcb17428a9f09883613d62217cf8e39..a12438c88f14cf6f28d50fd02e1c828dfcb948c4 100644
--- a/src/ports/SkTypeface_win_dw.cpp
+++ b/src/ports/SkTypeface_win_dw.cpp
@@ -266,8 +266,8 @@ void DWriteFontTypeface::onFilterRec(SkScalerContext::Rec* rec) const {
     h = SkPaint::kSlight_Hinting;
     rec->setHinting(h);
 
-#if SK_FONT_HOST_USE_SYSTEM_SETTINGS
-    IDWriteFactory* factory = get_dwrite_factory();
+#if defined(SK_FONT_HOST_USE_SYSTEM_SETTINGS)
+    IDWriteFactory* factory = sk_get_dwrite_factory();
     if (factory != nullptr) {
         SkTScopedComPtr<IDWriteRenderingParams> defaultRenderingParams;
         if (SUCCEEDED(factory->CreateRenderingParams(&defaultRenderingParams))) {