SkPDF: Glyph validation change

src/pdf/SkPDFDevice.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPDFDevice_DEFINED
 #define SkPDFDevice_DEFINED
 
@@ skipping 259 matching lines @@
 
     void populateGraphicStateEntryFromPaint(const SkMatrix& matrix,
                                             const SkClipStack& clipStack,
                                             const SkRegion& clipRegion,
                                             const SkPaint& paint,
                                             bool hasText,
                                             GraphicStateEntry* entry);
     int addGraphicStateResource(SkPDFObject* gs);
     int addXObjectResource(SkPDFObject* xObject);
 
-    // returns false when a valid SkFont can not be produced
-    bool updateFont(const SkPaint& paint, uint16_t glyphID, ContentEntry* contentEntry);
+    // returns nullptr when a valid SkFont can not be produced
+    SkPDFFont* updateFont(SkTypeface* typeface,
+                          SkScalar textSize,
+                          uint16_t glyphID,
+                          ContentEntry* contentEntry);
     int getFontResourceIndex(SkTypeface* typeface, uint16_t glyphID);
 
 
     void internalDrawText(const SkDraw&, const void*, size_t, const SkScalar pos[],
                           SkTextBlob::GlyphPositioning, SkPoint, const SkPaint&);
 
 
     void internalDrawPaint(const SkPaint& paint, ContentEntry* contentEntry);
 
     void internalDrawImage(const SkMatrix& origMatrix,
@@ skipping 10 matching lines @@
 
     typedef SkBaseDevice INHERITED;
 
     // TODO(edisonn): Only SkDocument_PDF and SkPDFImageShader should be able to create
     // an SkPDFDevice
     //friend class SkDocument_PDF;
     //friend class SkPDFImageShader;
 };
 
 #endif