SkPDF: Refactor SkPDFObject heiararchy.

src/pdf/SkPDFFont.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 <ctype.h>
 
 #include "SkData.h"
@@ skipping 1372 matching lines @@
                                     &content);
         const SkPath* path = cache->findPath(glyph);
         if (path) {
             SkPDFUtils::EmitPath(*path, paint.getStyle(), &content);
             SkPDFUtils::PaintPath(paint.getStyle(), path->getFillType(),
                                   &content);
         }
         SkAutoTDelete<SkMemoryStream> glyphStream(new SkMemoryStream());
         glyphStream->setData(content.copyToData())->unref();
 
-        SkAutoTUnref<SkPDFStream> glyphDescription(
-            new SkPDFStream(glyphStream.get()));
-        charProcs->insert(characterName.c_str(),
-                          new SkPDFObjRef(glyphDescription.get()))->unref();
+        charProcs->insertObjRef(characterName,
+                                new SkPDFStream(glyphStream.get()));
     }
 
     insert("FontBBox", makeFontBBox(bbox, 1000))->unref();
     insertInt("FirstChar", 1);
     insertInt("LastChar", lastGlyphID() - firstGlyphID() + 1);
     insert("Widths", widthArray.get());
     insertName("CIDToGIDMap", "Identity");
 
     populateToUnicodeTable(NULL);
     return true;
@@ skipping 12 matching lines @@
     }
     if (existingFont != NULL) {
         return (existingFont->fFirstGlyphID <= searchGlyphID &&
                 searchGlyphID <= existingFont->fLastGlyphID)
                        ? SkPDFFont::kExact_Match
                        : SkPDFFont::kRelated_Match;
     }
     return (existingGlyphID == searchGlyphID) ? SkPDFFont::kExact_Match
                                               : SkPDFFont::kRelated_Match;
 }