Turn on threaded DMQuiltTask drawing for old-format SkPictures too.

dm/DMQuiltTask.cpp

 #include "DMQuiltTask.h"
 #include "DMUtil.h"
 #include "DMWriteTask.h"
 
 #include "SkCommandLineFlags.h"
 #include "SkPicture.h"
 #include "SkThreadPool.h"
 
 DEFINE_bool(quilt, true, "If true, draw into a quilt of small tiles and compare.");
 DEFINE_int32(quiltTile, 256, "Dimension of (square) quilt tile.");
-DEFINE_bool(quiltThreaded, false, "If true, draw quilt tiles with multiple threads.");
+DEFINE_bool(quiltThreaded, true, "If true, draw quilt tiles with multiple threads.");
 
 static const char* kSuffixes[] = { "quilt", "quilt_skr" };
 
 namespace DM {
 
 QuiltTask::QuiltTask(const Task& parent, skiagm::GM* gm, SkBitmap reference, QuiltTask::Mode mode)
     : CpuTask(parent)
     , fMode(mode)
     , fName(UnderJoin(parent.name().c_str(), kSuffixes[mode]))
     , fGM(gm)
@@ skipping 62 matching lines @@
     if (fGM->getFlags() & skiagm::GM::kSkipPicture_Flag) {
         return true;
     }
     if (fGM->getFlags() & skiagm::GM::kSkipTiled_Flag) {
         return true;
     }
     return !FLAGS_quilt;
 }
 
 }  // namespace DM