DM: add --tileGrid

dm/DMCpuTask.cpp

 #include "DMCpuTask.h"
 #include "DMChecksumTask.h"
 #include "DMPipeTask.h"
 #include "DMReplayTask.h"
 #include "DMSerializeTask.h"
+#include "DMTileGridTask.h"
 #include "DMUtil.h"
 #include "DMWriteTask.h"
 
 namespace DM {
 
 CpuTask::CpuTask(const char* name,
                  Reporter* reporter,
                  TaskRunner* taskRunner,
                  const skiagm::ExpectationsSource& expectations,
                  skiagm::GMRegistry::Factory gmFactory,
@@ skipping 14 matching lines @@
     canvas.concat(fGM->getInitialTransform());
     fGM->draw(&canvas);
     canvas.flush();
 
 #define SPAWN(ChildTask, ...) this->spawnChild(SkNEW_ARGS(ChildTask, (*this, __VA_ARGS__)))
     SPAWN(ChecksumTask, fExpectations, bitmap);
 
     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
 }
 
 bool CpuTask::shouldSkip() const {
     if (SkBitmap::kRGB_565_Config == fConfig && (fGM->getFlags() & skiagm::GM::kSkip565_Flag)) {
         return true;
     }
     if (fGM->getFlags() & skiagm::GM::kGPUOnly_Flag) {
         return true;
     }
     return false;
 }
 
 }  // namespace DM