add portable and canonical font support for DM

gm/fontscaler.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gm.h"
 #include "SkTypeface.h"
 
 namespace skiagm {
@@ skipping 29 matching lines @@
     }
 
     virtual void onDraw(SkCanvas* canvas) {
         SkPaint paint;
 
         paint.setAntiAlias(true);
         paint.setLCDRenderText(true);
         //With freetype the default (normal hinting) can be really ugly.
         //Most distros now set slight (vertical hinting only) in any event.
         paint.setHinting(SkPaint::kSlight_Hinting);
-        SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromName("Times Roman", SkTypeface::kNormal)));
+        sk_tool_utils::set_portable_typeface(&paint, "Times Roman", SkTypeface::kNormal);
 
         const char* text = "Hamburgefons ooo mmm";
         const size_t textLen = strlen(text);
 
         for (int j = 0; j < 2; ++j) {
             // This used to do 6 iterations but it causes the N4 to crash in the MSAA4 config.
             for (int i = 0; i < 5; ++i) {
                 SkScalar x = SkIntToScalar(10);
                 SkScalar y = SkIntToScalar(20);
 
@@ skipping 27 matching lines @@
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new FontScalerGM; }
 static GMRegistry reg(MyFactory);
 
 }