make pixelsnap textblob* etc gm portable

gm/textblobshader.cpp

 /*
  * Copyright 2014 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 "SkCanvas.h"
@@ skipping 15 matching lines @@
     }
 
 protected:
 
     void onOnceBeforeDraw() override {
         SkPaint p;
         p.setAntiAlias(true);
         p.setSubpixelText(true);
         p.setTextSize(30);
         p.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
+        sk_tool_utils::set_portable_typeface(&p);
 
         SkTextBlobBuilder builder;
         int glyphCount = fGlyphs.count();
         const SkTextBlobBuilder::RunBuffer* run;
 
         run = &builder.allocRun(p, glyphCount, 10, 10, NULL);
         memcpy(run->glyphs, fGlyphs.begin(), glyphCount * sizeof(uint16_t));
 
         run = &builder.allocRunPosH(p, glyphCount,  80, NULL);
         memcpy(run->glyphs, fGlyphs.begin(), glyphCount * sizeof(uint16_t));
@@ skipping 55 matching lines @@
 
 private:
     SkTDArray<uint16_t>            fGlyphs;
     SkAutoTUnref<const SkTextBlob> fBlob;
     SkAutoTUnref<SkShader>         fShader;
 
     typedef skiagm::GM INHERITED;
 };
 
 DEF_GM( return SkNEW_ARGS(TextBlobShaderGM, ("Blobber")); )