add portable and canonical font support for DM

gm/typeface.cpp

Index: gm/typeface.cpp
diff --git a/gm/typeface.cpp b/gm/typeface.cpp
index f2c56a591ed14a0ed5ea0277d7698faf8c87f817..2ed61ac965a5fee70b01d751b667fd7ad2cb0492 100644
--- a/gm/typeface.cpp
+++ b/gm/typeface.cpp
@@ -24,7 +24,7 @@ public:
     TypefaceGM() {
         fFaces = new SkTypeface*[SK_ARRAY_COUNT(gFaces)];
         for (size_t i = 0; i < SK_ARRAY_COUNT(gFaces); i++) {
-            fFaces[i] = SkTypeface::CreateFromName(gFaces[i], SkTypeface::kNormal);
+            fFaces[i] = sk_tool_utils::portable_typeface(gFaces[i], SkTypeface::kNormal);
         }
     }
 
@@ -159,8 +159,8 @@ class TypefaceStylesGM : public skiagm::GM {
 public:
     TypefaceStylesGM(bool applyKerning) : fApplyKerning(applyKerning) {
         for (int i = 0; i < gFaceStylesCount; i++) {
-            fFaces[i] = SkTypeface::CreateFromName(gFaceStyles[i].fName,
-                                                   gFaceStyles[i].fStyle);
+            fFaces[i] = sk_tool_utils::portable_typeface(gFaceStyles[i].fName,
+                                                         gFaceStyles[i].fStyle);
         }
     }