Revert of Sketch DM refactor.

dm/DMQuiltTask.h

+#ifndef DMQuiltTask_DEFINED
+#define DMQuiltTask_DEFINED
+
+#include "DMTask.h"
+#include "SkBitmap.h"
+#include "SkString.h"
+#include "SkTemplates.h"
+#include "gm.h"
+
+// Records a GM through an SkPicture, draws it in tiles, and compares against the reference bitmap.
+
+namespace DM {
+
+class QuiltTask : public CpuTask {
+public:
+    enum BBH {
+        kNone_BBH,
+        kRTree_BBH,
+    };
+
+    QuiltTask(const Task& parent,  // QuiltTask must be a child task.  Pass its parent here.
+              skiagm::GM*,         // GM to run through a picture.  Takes ownership.
+              SkBitmap reference,  // Bitmap to compare picture replay results to.
+              BBH);
+
+    void draw() SK_OVERRIDE;
+    bool shouldSkip() const SK_OVERRIDE;
+    SkString name() const SK_OVERRIDE { return fName; }
+
+private:
+    const BBH fBBH;
+    const SkString fName;
+    SkAutoTDelete<skiagm::GM> fGM;
+    const SkBitmap fReference;
+};
+
+}  // namespace DM
+
+#endif  // DMReplayTask_DEFINED