SkTileGrid: store insertion order, return results sorted by that.

dm/DMCpuGMTask.cpp

 #include "DMCpuGMTask.h"
 #include "DMExpectationsTask.h"
 #include "DMPipeTask.h"
 #include "DMQuiltTask.h"
 #include "DMSerializeTask.h"
 #include "DMUtil.h"
 #include "DMWriteTask.h"
 
 namespace DM {
 
@@ skipping 28 matching lines @@
     SPAWN(PipeTask, fGMFactory(NULL), bm, PipeTask::kSharedAddress_Mode);
 
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kNone_BBH,     QuiltTask::kDefault_Backend);
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kRTree_BBH,    QuiltTask::kDefault_Backend);
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kQuadTree_BBH, QuiltTask::kDefault_Backend);
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kTileGrid_BBH, QuiltTask::kDefault_Backend);
 
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kNone_BBH,     QuiltTask::kSkRecord_Backend);
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kRTree_BBH,    QuiltTask::kSkRecord_Backend);
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kQuadTree_BBH, QuiltTask::kSkRecord_Backend);
-    /*  TODO: Failing, not sure why.  Enable these when passing.
     SPAWN(QuiltTask, fGMFactory(NULL), bm, QuiltTask::kTileGrid_BBH, QuiltTask::kSkRecord_Backend);
-    */
 
     SPAWN(SerializeTask, fGMFactory(NULL), bm, SerializeTask::kNormal_Mode);
     SPAWN(SerializeTask, fGMFactory(NULL), bm, SerializeTask::kSkRecord_Mode);
 
     SPAWN(WriteTask, bm);
 #undef SPAWN
 }
 
 bool CpuGMTask::shouldSkip() const {
     if (kRGB_565_SkColorType == fColorType && (fGM->getFlags() & skiagm::GM::kSkip565_Flag)) {
         return true;
     }
     if (fGM->getFlags() & skiagm::GM::kGPUOnly_Flag) {
         return true;
     }
     return false;
 }
 
 }  // namespace DM