Don't test the old picture backend anymore.

dm/DMSerializeTask.h

Index: dm/DMSerializeTask.h
diff --git a/dm/DMSerializeTask.h b/dm/DMSerializeTask.h
index d06ebeb5f759d22752b41c20d8e20bc4d3566a99..c840d278fa4d78fd16faceb1f2651ea64c392cd0 100644
--- a/dm/DMSerializeTask.h
+++ b/dm/DMSerializeTask.h
@@ -14,21 +14,13 @@ namespace DM {
 class SerializeTask : public CpuTask {
 
 public:
-    enum Mode {
-        kNormal_Mode,
-        kSkRecord_Mode,
-    };
-    SerializeTask(const Task& parent,
-                  skiagm::GM*,
-                  SkBitmap reference,
-                  Mode mode);
+    SerializeTask(const Task& parent, skiagm::GM*, SkBitmap reference);
 
     virtual void draw() SK_OVERRIDE;
     virtual bool shouldSkip() const SK_OVERRIDE;
     virtual SkString name() const SK_OVERRIDE { return fName; }
 
 private:
-    const Mode fMode;
     const SkString fName;
     SkAutoTDelete<skiagm::GM> fGM;
     const SkBitmap fReference;