DM: add --tileGrid

dm/DMCpuTask.cpp

Index: dm/DMCpuTask.cpp
diff --git a/dm/DMCpuTask.cpp b/dm/DMCpuTask.cpp
index 263e55667ee95a40ad1b0c14c4758df9befc6473..3f51c8a31897062459b694e736613719f4e7a77d 100644
--- a/dm/DMCpuTask.cpp
+++ b/dm/DMCpuTask.cpp
@@ -3,6 +3,7 @@
 #include "DMPipeTask.h"
 #include "DMReplayTask.h"
 #include "DMSerializeTask.h"
+#include "DMTileGridTask.h"
 #include "DMUtil.h"
 #include "DMWriteTask.h"
 
@@ -37,11 +38,10 @@ void CpuTask::draw() {
     SPAWN(PipeTask, fGMFactory(NULL), bitmap, false, false);
     SPAWN(PipeTask, fGMFactory(NULL), bitmap, true, false);
     SPAWN(PipeTask, fGMFactory(NULL), bitmap, true, true);
-
     SPAWN(ReplayTask, fGMFactory(NULL), bitmap, false);
     SPAWN(ReplayTask, fGMFactory(NULL), bitmap, true);
-
     SPAWN(SerializeTask, fGMFactory(NULL), bitmap);
+    SPAWN(TileGridTask, fGMFactory(NULL), bitmap, SkISize::Make(16,16));
 
     SPAWN(WriteTask, bitmap);
 #undef SPAWN