Use SkPicture::ExtractBitmap callback in pdf too.

tools/PdfRenderer.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef PdfRenderer_DEFINED
 #define PdfRenderer_DEFINED
 
@@ skipping 15 matching lines @@
 
 namespace sk_tools {
 
 class PdfRenderer : public SkRefCnt {
 public:
     virtual void init(SkPicture* pict);
     virtual void setup() {}
     virtual void render() = 0;
     virtual void end();
 
-    PdfRenderer(EncodeToDCTStream encoder)
+    PdfRenderer(SkPicture::EncodeBitmap encoder)
         : fPicture(NULL)
         , fPDFDevice(NULL)
         , fEncoder(encoder)
         {}
 
     void write(SkWStream* stream) const;
 
 protected:
     SkCanvas* setupCanvas();
     SkCanvas* setupCanvas(int width, int height);
 
     SkAutoTUnref<SkCanvas> fCanvas;
     SkPicture* fPicture;
     SkPDFDevice* fPDFDevice;
-    EncodeToDCTStream fEncoder;
+    SkPicture::EncodeBitmap fEncoder;
 
 private:
     typedef SkRefCnt INHERITED;
 };
 
 class SimplePdfRenderer : public PdfRenderer {
 public:
-    SimplePdfRenderer(EncodeToDCTStream encoder)
+    SimplePdfRenderer(SkPicture::EncodeBitmap encoder)
         : PdfRenderer(encoder) {}
     virtual void render() SK_OVERRIDE;
 
 private:
     typedef PdfRenderer INHERITED;
 };
 
 }
 
 #endif  // PdfRenderer_DEFINED