SkDocument::setDCTEncoder() for old versions of webkit

include/core/SkDocument.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDocument_DEFINED
 #define SkDocument_DEFINED
 
 #include "SkBitmap.h"
 #include "SkPicture.h"
 #include "SkRect.h"
 #include "SkRefCnt.h"
 #include "SkString.h"
 #include "SkTime.h"
 
 class SkCanvas;
+class SkPixelSerializer;
 class SkWStream;
 
 /** SK_ScalarDefaultDPI is 72 DPI.
 */
 #define SK_ScalarDefaultRasterDPI           72.0f
 
 /**
  *  High-level API for creating a document-based canvas. To use..
  *
  *  1. Create a document, specifying a stream to store the output.
@@ skipping 22 matching lines @@
      *         for larger PDF files too, which would use more memory
      *         while rendering, and it would be slower to be processed
      *         or sent online or to printer.
      *  @returns NULL if there is an error, otherwise a newly created
      *           PDF-backed SkDocument.
      */
     static SkDocument* CreatePDF(SkWStream*,
                                  SkScalar dpi = SK_ScalarDefaultRasterDPI);
 
     /**
+     *  @param jpegEncoder For PDF documents, if a jpegEncoder is set,
+     *         use it to encode SkImages and SkBitmaps as [JFIF]JPEGs.
+     *         This feature is deprecated and is only supplied for
+     *         backwards compatability.
+     *
+     *         The prefered method to create PDFs with JPEG images is
+     *         to use SkImage::NewFromEncoded() and not jpegEncoder.
+     *         Chromium uses NewFromEncoded.
+     *
+     *         If the encoder is unset, or if jpegEncoder->onEncode()
+     *         returns NULL, fall back on encoding images losslessly
+     *         with Deflate.
+     */
+    static SkDocument* CreatePDF(SkWStream*,
+                                 SkScalar dpi,
+                                 SkPixelSerializer* jpegEncoder);
+
+    /**
      *  Create a PDF-backed document, writing the results into a file.
      */
     static SkDocument* CreatePDF(const char outputFilePath[],
                                  SkScalar dpi = SK_ScalarDefaultRasterDPI);
 
     /**
      *  Create a XPS-backed document, writing the results into the stream.
      *  Returns NULL if XPS is not supported.
      */
     static SkDocument* CreateXPS(SkWStream* stream,
@@ skipping 87 matching lines @@
 
 private:
     SkWStream* fStream;
     void       (*fDoneProc)(SkWStream*, bool aborted);
     State      fState;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif