Adding top category, subcategory and book path detection for go/libraries

Fix for sdk download form b/28425669

Fix for missing 'Develop' text in left nav on preview pages b/28450858

Change-Id: I0b7a5dc26dc3cb4be58aecbbad41cdf62e0331ba
diff --git a/tools/droiddoc/templates-sdk-dev/head_tag.cs b/tools/droiddoc/templates-sdk-dev/head_tag.cs
index 549311d..c3ae93d 100644
--- a/tools/droiddoc/templates-sdk-dev/head_tag.cs
+++ b/tools/droiddoc/templates-sdk-dev/head_tag.cs
@@ -5,11 +5,11 @@
     if:devsite ?>
     <meta name="top_category" value="<?cs
       if:ndk ?>ndk<?cs
-      elif:(guide||develop||training||reference||tools||sdk||google||reference.gms||reference.gcm||samples) ?>develop<?cs
+      elif:(guide||develop||training||reference||tools||sdk||google||reference.gms||reference.gcm||samples||preview) ?>develop<?cs
+      elif:(go||libraries) ?>develop<?cs
       elif:(distribute||googleplay||essentials||users||engage||monetize||disttools||stories||analyze) ?>distribute<?cs
       elif:(design||vision||material||patterns||devices||designdownloads) ?>design<?cs
       elif:(about||versions||wear||tv||auto) ?>about<?cs
-      elif:preview ?>preview<?cs
       else ?>none<?cs
       /if ?>" />
     <?cs set:dac_subcategory_set = #1 ?>
@@ -34,6 +34,9 @@
             if:(samplesDocPage&&!samplesProjectIndex) ?> samples-docpage<?cs /if ?><?cs
           else ?>none<?cs set:dac_subcategory_set = #0 ?><?cs /if ?><?cs
         elif:(google||reference.gms||reference.gcm) ?>google<?cs
+        elif:(go||libraries) ?><?cs
+          if:libraries ?>libraries<?cs
+          else ?>none<?cs set:dac_subcategory_set = #0 ?><?cs /if ?><?cs
         elif:(distribute||googleplay||essentials||users||engage||monetize||disttools||stories||analyze) ?><?cs
           if:googleplay ?>googleplay<?cs
           elif:essentials ?>essentials<?cs
@@ -69,6 +72,8 @@
             elif:sdk ?>/tools<?cs
             elif:samples ?>/samples<?cs /if ?><?cs
           elif:(google||reference.gms||reference.gcm) ?>/google<?cs
+          elif:(go||libraries) ?>/go<?cs
+            if:libraries ?>/libraries<?cs /if ?><?cs
           elif:(distribute||googleplay||essentials||users||engage||monetize||disttools||stories||analyze) ?>/distribute<?cs
             if:googleplay ?>/googleplay<?cs
             elif:essentials ?>/essentials<?cs
diff --git a/tools/droiddoc/templates-sdk-dev/sdkpage.cs b/tools/droiddoc/templates-sdk-dev/sdkpage.cs
index b0c4d39..452e87c 100644
--- a/tools/droiddoc/templates-sdk-dev/sdkpage.cs
+++ b/tools/droiddoc/templates-sdk-dev/sdkpage.cs
@@ -449,7 +449,7 @@
     idname = bundlename + "-size";
     sizeMB = $(idname).text().split(' MB')[0];
     $('.download-bundle-button > .small').html(" for " + os + " <em>(" + sizeMB + " MB)</em>");
-    $('.download-bundle-button').click(function() {return onDownload(this,true,true);}).attr('href', bundlename);
+    $('.download-bundle-button').click(function() { onDownload(this,true,true);}).attr('href', bundlename);
   }
 
 
@@ -581,11 +581,14 @@
 </div><!-- end g-unit -->
 
 <?cs include:"trailer.cs" ?>
+<?cs if:!devsite ?>
 <script src="https://developer.android.com/ytblogger_lists_unified.js?v=17" type="text/javascript"></script>
 <script src="/jd_lists_unified.js?v=17" type="text/javascript"></script>
 <script src="/jd_extras.js?v=17" type="text/javascript"></script>
 <script src="/jd_collections.js?v=17" type="text/javascript"></script>
 <script src="/jd_tag_helpers.js?v=17" type="text/javascript"></script>
+<?cs /if ?><!--end !devsite -->
+
 
 <!-- Start of Tag -->
 <script type="text/javascript">