make pixelsnap textblob* etc gm portable

gm/poly2poly.cpp

Index: gm/poly2poly.cpp
diff --git a/gm/poly2poly.cpp b/gm/poly2poly.cpp
index 72ab7276e134a0399c351fa9e218a6d3e4cfa60a..c1d9b7e9e5657408a2e4b2f8ae8162433daab5e5 100644
--- a/gm/poly2poly.cpp
+++ b/gm/poly2poly.cpp
@@ -6,6 +6,8 @@
  */
 
 #include "gm.h"
+#include "Resources.h"
+#include "SkTypeface.h"
 
 class SkJSCanvas {
 public:
@@ -215,19 +217,22 @@ protected:
         paint->setStyle(SkPaint::kFill_Style);
         SkScalar x = D/2;
         SkScalar y = D/2 - (fm.fAscent + fm.fDescent)/2;
-        SkString str;
-        str.appendS32(count);
-        canvas->drawText(str.c_str(), str.size(), x, y, *paint);
-
+        uint16_t glyphID = 3; // X
+        canvas->drawText((void*) &glyphID, sizeof(glyphID), x, y, *paint);
         canvas->restore();
     }
 
+    void onOnceBeforeDraw() override {
+        fEmFace.reset(GetResourceAsTypeface("/fonts/Em.ttf"));
+    }
+
     void onDraw(SkCanvas* canvas) override {
         if (false) { test_stroke(canvas); return; }
 
         SkPaint paint;
         paint.setAntiAlias(true);
-        sk_tool_utils::set_portable_typeface(&paint);
+        paint.setTypeface(fEmFace);
+        paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
         paint.setStrokeWidth(SkIntToScalar(4));
         paint.setTextSize(SkIntToScalar(40));
         paint.setTextAlign(SkPaint::kCenter_Align);
@@ -267,6 +272,7 @@ protected:
 
 private:
     typedef skiagm::GM INHERITED;
+    SkAutoTUnref<SkTypeface> fEmFace;
 };
 
 //////////////////////////////////////////////////////////////////////////////