DM: add --rtree.

BUG=
R=epoger@google.com

Author: mtklein@google.com

Review URL: https://codereview.chromium.org/51243003

git-svn-id: http://skia.googlecode.com/svn/trunk@12033 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/dm/DMCpuTask.cpp b/dm/DMCpuTask.cpp
index 7e6f909..1d1d401 100644
--- a/dm/DMCpuTask.cpp
+++ b/dm/DMCpuTask.cpp
@@ -38,7 +38,9 @@
     this->spawnChild(SkNEW_ARGS(PipeTask, (*this, fGMFactory(NULL), bitmap, true, false)));
     this->spawnChild(SkNEW_ARGS(PipeTask, (*this, fGMFactory(NULL), bitmap, true, true)));
 
-    this->spawnChild(SkNEW_ARGS(ReplayTask, (*this, fGMFactory(NULL), bitmap)));
+    this->spawnChild(SkNEW_ARGS(ReplayTask, (*this, fGMFactory(NULL), bitmap, true)));
+    this->spawnChild(SkNEW_ARGS(ReplayTask, (*this, fGMFactory(NULL), bitmap, false)));
+
     this->spawnChild(SkNEW_ARGS(SerializeTask, (*this, fGMFactory(NULL), bitmap)));
     this->spawnChild(SkNEW_ARGS(WriteTask, (*this, bitmap)));
 }