Sketch DM refactor.

dm/DMPDFRasterizeTask.h

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef DMPDFRasterizeTask_DEFINED
-#define DMPDFRasterizeTask_DEFINED
-
-#include "DMTask.h"
-#include "SkBitmap.h"
-#include "SkData.h"
-#include "SkStream.h"
-#include "SkString.h"
-#include "SkTemplates.h"
-
-namespace DM {
-
-typedef bool (*RasterizePdfProc)(SkStream* pdf, SkBitmap* output);
-
-class PDFRasterizeTask : public CpuTask {
-public:
-    // takes ownership of SkStreamAsset.
-    PDFRasterizeTask(const Task& parent,
-                     SkStreamAsset* pdf,
-                     RasterizePdfProc);
-
-    void draw() SK_OVERRIDE;
-    bool shouldSkip() const SK_OVERRIDE { return NULL == fRasterize; }
-    SkString name()   const SK_OVERRIDE { return fName; }
-
-private:
-    const SkString fName;
-    SkAutoTDelete<SkStreamAsset> fPdf;
-    RasterizePdfProc fRasterize;
-};
-
-}  // namespace DM
-
-#endif  // DMPDFRasterizeTask_DEFINED