Update samples_navtree cs template to include generated _yaml from samples TOC.

Change-Id: Ied2bd5b3e58d9eb2c10e8bc10678aa5d02ef1794
diff --git a/tools/droiddoc/templates-sdk-dev/samples_navtree_data.cs b/tools/droiddoc/templates-sdk-dev/samples_navtree_data.cs
index 24ac7b7..b9b4214 100644
--- a/tools/droiddoc/templates-sdk-dev/samples_navtree_data.cs
+++ b/tools/droiddoc/templates-sdk-dev/samples_navtree_data.cs
@@ -1,3 +1,8 @@
-var SAMPLES_NAVTREE_DATA =
-<?cs var:reference_tree ?>
-;
+toc:
+- title: About the Samples
+  path: /samples/index.html
+
+- title: What's New
+  path: /samples/new/index.html
+
+<?cs var:samples_toc_tree ?>
\ No newline at end of file