Revert of Sketch DM refactor.

dm/DMPDFRasterizeTask.cpp

+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "DMPDFRasterizeTask.h"
+#include "DMUtil.h"
+#include "DMWriteTask.h"
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include "SkStream.h"
+
+namespace DM {
+
+PDFRasterizeTask::PDFRasterizeTask(const Task& parent,
+                                   SkStreamAsset* pdf,
+                                   RasterizePdfProc proc)
+    : CpuTask(parent)
+    , fName(UnderJoin(parent.name().c_str(), "rasterize"))
+    , fPdf(pdf)
+    , fRasterize(proc) {
+    SkASSERT(fPdf.get());
+    SkASSERT(fPdf->unique());
+}
+
+void PDFRasterizeTask::draw() {
+    SkBitmap bitmap;
+
+    if (fRasterize(fPdf.get(), &bitmap)) {
+        this->spawnChild(SkNEW_ARGS(WriteTask, (*this, "PDF", bitmap)));
+    } else {
+        this->fail();
+    }
+}
+
+}  // namespace DM