Revert "Revert "Merge "Resolve merge conflicts of a5f0068 to nyc-dev" into nyc-dev""

This reverts commit bf234fdfba1116cc29e8cc8443d08804843edf94.
diff --git a/tools/droiddoc/templates-sdk-refonly/header.cs b/tools/droiddoc/templates-sdk-refonly/header.cs
new file mode 100644
index 0000000..e8301be
--- /dev/null
+++ b/tools/droiddoc/templates-sdk-refonly/header.cs
@@ -0,0 +1,3 @@
+<?cs call:custom_masthead() ?>
+<?cs call:custom_left_nav() ?>
+