Revert of Sketch DM refactor.

dm/DMSKPTask.cpp

+#include "DMSKPTask.h"
+#include "DMUtil.h"
+#include "DMWriteTask.h"
+
+#include "SkCommandLineFlags.h"
+#include "SkPictureRecorder.h"
+
+DEFINE_int32(skpMaxWidth,  1000, "Max SKPTask viewport width.");
+DEFINE_int32(skpMaxHeight, 1000, "Max SKPTask viewport height.");
+
+namespace DM {
+
+SKPTask::SKPTask(Reporter* r,
+                 TaskRunner* tr,
+                 const SkPicture* pic,
+                 SkString filename)
+    : CpuTask(r, tr)
+    , fPicture(SkRef(pic))
+    , fName(FileToTaskName(filename)) {}
+
+void SKPTask::draw() {
+    const int width  = SkTMin(SkScalarCeilToInt(fPicture->cullRect().width()),  FLAGS_skpMaxWidth),
+              height = SkTMin(SkScalarCeilToInt(fPicture->cullRect().height()), FLAGS_skpMaxHeight);
+    SkBitmap bitmap;
+    AllocatePixels(kN32_SkColorType, width, height, &bitmap);
+    DrawPicture(*fPicture, &bitmap);
+
+    this->spawnChild(SkNEW_ARGS(WriteTask, (*this, "SKP", bitmap)));
+}
+
+}  // namespace DM