add portable and canonical font support for DM

gm/lighting.cpp

 /*
  * Copyright 2012 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 "SkLightingImageFilter.h"
 
@@ skipping 16 matching lines @@
     virtual SkString onShortName() {
         return SkString("lighting");
     }
 
     void make_bitmap() {
         fBitmap.allocN32Pixels(100, 100);
         SkCanvas canvas(fBitmap);
         canvas.clear(0x00000000);
         SkPaint paint;
         paint.setAntiAlias(true);
+        sk_tool_utils::set_portable_typeface(&paint);
         paint.setColor(0xFFFFFFFF);
         paint.setTextSize(SkIntToScalar(96));
         const char* str = "e";
         canvas.drawText(str, strlen(str), SkIntToScalar(20), SkIntToScalar(70), paint);
     }
 
     virtual SkISize onISize() {
         return SkISize::Make(WIDTH, HEIGHT);
     }
 
@@ skipping 74 matching lines @@
     SkBitmap fBitmap;
     bool fInitialized;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static GM* MyFactory(void*) { return new ImageLightingGM; }
 static GMRegistry reg(MyFactory);
 
 }