docs: update template files with those from the templates-ds directory

Change-Id: I47b07b17ea79d0b00300492ba7854e37f1ab00d0
diff --git a/tools/droiddoc/templates-sdk/classes.cs b/tools/droiddoc/templates-sdk/classes.cs
index 47899e5..6769f47 100644
--- a/tools/droiddoc/templates-sdk/classes.cs
+++ b/tools/droiddoc/templates-sdk/classes.cs
@@ -1,6 +1,6 @@
 <?cs include:"doctype.cs" ?>
 <?cs include:"macros.cs" ?>
-<html>
+<html<?cs if:devsite ?> devsite<?cs /if ?>>
 <?cs include:"head_tag.cs" ?>
 <body class="gc-documentation <?cs if:(reference.gms || reference.gcm) ?>google<?cs /if ?>
   <?cs if:(guide||develop||training||reference||tools||sdk) ?>develop<?cs