Ensure blob typeface information survives SkGPipe serialization.

gm/textblob.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 48 matching lines @@
         { { 4,  kScalar_Pos, 1 },     { 4,   kPoint_Pos, .75f },  { 4, kDefault_Pos, 1.25f } },
         { { 4,   kPoint_Pos, 1 },     { 4, kDefault_Pos, .75f },  { 4,  kScalar_Pos, 1.25f } },
     },
 };
 
 const SkScalar kFontSize = 16;
 }
 
 class TextBlobGM : public skiagm::GM {
 public:
-    TextBlobGM(const char* txt) {
+    TextBlobGM(const char* txt)
+        : fTypeface(sk_tool_utils::create_portable_typeface("Times", SkTypeface::kNormal)) {
         SkPaint p;
+        p.setTypeface(fTypeface);
         size_t txtLen = strlen(txt);
         int glyphCount = p.textToGlyphs(txt, txtLen, NULL);
 
         fGlyphs.append(glyphCount);
         p.textToGlyphs(txt, txtLen, fGlyphs.begin());
     }
 
 protected:
     virtual SkString onShortName() SK_OVERRIDE {
         return SkString("textblob");
@@ skipping 23 matching lines @@
     }
 
 private:
     const SkTextBlob* makeBlob(unsigned blobIndex) {
         SkTextBlobBuilder builder;
 
         SkPaint font;
         font.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
         font.setAntiAlias(true);
         font.setSubpixelText(true);
+        font.setTypeface(fTypeface);
 
         for (unsigned l = 0; l < SK_ARRAY_COUNT(blobConfigs[blobIndex]); ++l) {
             unsigned currentGlyph = 0;
 
             for (unsigned c = 0; c < SK_ARRAY_COUNT(blobConfigs[blobIndex][l]); ++c) {
                 const BlobCfg* cfg = &blobConfigs[blobIndex][l][c];
                 unsigned count = cfg->count;
 
                 if (count > fGlyphs.count() - currentGlyph) {
                     count = fGlyphs.count() - currentGlyph;
@@ skipping 42 matching lines @@
                     SkFAIL("unhandled pos value");
                 }
 
                 currentGlyph += count;
             }
         }
 
         return builder.build();
     }
 
-    SkTDArray<uint16_t> fGlyphs;
+    SkTDArray<uint16_t>      fGlyphs;
+    SkAutoTUnref<SkTypeface> fTypeface;
 
     typedef skiagm::GM INHERITED;
 };
 
 DEF_GM( return SkNEW_ARGS(TextBlobGM, ("hamburgefons")); )