AI 150398: fix the sdk build break

BUG=1790234

Automated import of CL 150398

tools/droiddoc/templates/customization.cs

@@ -2,6 +2,10 @@
 <?cs # Use the -templatedir arg to javadoc to set your own directory with a     ?>
 <?cs # replacement for this file in it. ?>
 
+
+<?cs def:default_search_box() ?><?cs /def ?>
+<?cs def:default_left_nav() ?><?cs /def ?>
+
 <?cs # appears at the top of every page ?><?cs 
 def:custom_masthead() ?>
   <div id="header">