SkDocument::setDCTEncoder() for old versions of webkit

src/doc/SkDocument_PDF.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 "SkDocument.h"
 #include "SkPDFCanon.h"
 #include "SkPDFDevice.h"
@@ skipping 304 matching lines @@
 #endif
 
 template <typename T> static T* clone(const T* o) { return o ? new T(*o) : nullptr; }
 ////////////////////////////////////////////////////////////////////////////////
 
 namespace {
 class SkDocument_PDF : public SkDocument {
 public:
     SkDocument_PDF(SkWStream* stream,
                    void (*doneProc)(SkWStream*, bool),
-                   SkScalar rasterDpi)
+                   SkScalar rasterDpi,
+                   SkPixelSerializer* jpegEncoder)
         : SkDocument(stream, doneProc)
-        , fRasterDpi(rasterDpi) {}
+        , fRasterDpi(rasterDpi) {
+        fCanon.fPixelSerializer.reset(SkSafeRef(jpegEncoder));
+    }
 
     virtual ~SkDocument_PDF() {
         // subclasses must call close() in their destructors
         this->close();
     }
 
 protected:
     SkCanvas* onBeginPage(SkScalar width, SkScalar height,
                           const SkRect& trimBox) override {
         SkASSERT(!fCanvas.get());
@@ skipping 41 matching lines @@
     SkPDFCanon fCanon;
     SkTDArray<const SkPDFDevice*> fPageDevices;
     SkAutoTUnref<SkCanvas> fCanvas;
     SkScalar fRasterDpi;
     SkPDFMetadata fMetadata;
 };
 }  // namespace
 ///////////////////////////////////////////////////////////////////////////////
 
 SkDocument* SkDocument::CreatePDF(SkWStream* stream, SkScalar dpi) {
-    return stream ? new SkDocument_PDF(stream, nullptr, dpi) : nullptr;
+    return stream ? new SkDocument_PDF(stream, nullptr, dpi, nullptr) : nullptr;
+}
+
+SkDocument* SkDocument::CreatePDF(SkWStream* stream,
+                                  SkScalar dpi,
+                                  SkPixelSerializer* jpegEncoder) {
+    return stream
+        ? new SkDocument_PDF(stream, nullptr, dpi, jpegEncoder)
+        : nullptr;
 }
 
 SkDocument* SkDocument::CreatePDF(const char path[], SkScalar dpi) {
     SkFILEWStream* stream = new SkFILEWStream(path);
     if (!stream->isValid()) {
         delete stream;
         return nullptr;
     }
     auto delete_wstream = [](SkWStream* stream, bool) { delete stream; };
-    return new SkDocument_PDF(stream, delete_wstream, dpi);
+    return new SkDocument_PDF(stream, delete_wstream, dpi, nullptr);
 }