docs: Moving library docs out of /tools/

The /tools/ top-level directory is going away when we move to devsite
(and the Android Studio docs get their own home) so I'm moving the
non-AS docs out of there. Also adding redirects (and fixing redirects
that pointed to the old locations).

For the time being, I'm also adding these libraries in to the
"API Guides" TOC, just so they're discoverable from somewhere; I'm
expecting this to change post-redesign.

See first comment for doc stage location.

bug: 28270787
Change-Id: I07488251384fbd22d2512a797793cf98654f54e7

docs/html/_redirects.yaml

@@ -24,11 +24,11 @@ redirects:
 - from: /tools/debugging/debugging-projects-cmdline.html
   to: /tools/debugging/index.html
 - from: /sdk/compatibility-library.html
-  to: /tools/support-library/index.html
+  to: /go/libraries/support-library/index.html
 - from: /tools/extras/support-library.html
-  to: /tools/support-library/index.html
+  to: /go/libraries/support-library/index.html
 - from: /training/basics/fragments/support-lib.html
-  to: /tools/support-library/setup.html
+  to: /go/libraries/support-library/setup.html
 - from: /sdk/eclipse-adt.html
   to: /tools/sdk/eclipse-adt.html
 - from: /sdk/RELEASENOTES.html
@@ -72,13 +72,11 @@ redirects:
 - from: /tools/publishing/app-signing-eclipse.html
   to: /tools/help/adt.html
 - from: /tools/help/uiautomator/.*
-  to: /tools/testing-support-library/index.html
+  to: /go/libraries/testing-support/library/
 - from: /tools/testing/testing_ui.html
   to: /training/testing/ui-testing/index.html
 - from: /tools/testing/activity_test.html
   to: /training/testing/ui-testing/index.html
-- from: /tools/data-binding/index.html
-  to: /tools/data-binding/guide.html
 - from: /tools/testing/what_to_test.html
   to: /distribute/essentials/quality/core.html
 - from: /tools/testing/testing_accessibility.html
@@ -725,3 +723,14 @@ redirects:
   to: https://commondatastorage.googleapis.com/androiddevelopers/shareables/
 - from: /downloads/
   to: https://commondatastorage.googleapis.com/androiddevelopers/
+
+# Redirects for the new go/libraries/ area
+
+- from: /tools/support-library
+  to: /go/libraries/support-library
+
+- from: /tools/data-binding/...
+  to: /go/libraries/data-binding
+
+- from: /tools/testing-support-library
+  to: /go/libraries/testing-support-library

docs/html/go/libraries/_book.yaml

@@ -0,0 +1,17 @@
+toc:
+- title: Support Library
+  path: /tools/support-library/index.html
+  section:
+  - title: Features
+    path: /tools/support-library/features.html
+  - title: Setup
+    path: /tools/support-library/setup.html
+
+- title: Data Binding Library
+  path: /tools/data-binding/guide.html
+
+- title: Testing Support Library
+  path: /tools/testing-support-library/index.html
+  section:
+  - title: API Reference
+    path: /reference/android/support/test/package-summary.html

docs/html/go/libraries/data-binding/index.jd

@@ -1,4 +1,5 @@
-page.title=Data Binding Guide
+page.title=Data Binding Library
+page.metaDescription=The Data Binding Library enables you to write declarative layouts.
 page.tags="databinding", "layouts"
 @jd:body
 

docs/html/go/libraries/index.jd

@@ -0,0 +1,14 @@
+page.title=Android Libraries
+
+@jd:body
+
+<p>This section describes several useful Android libraries that are not
+included with the Android Framework.</p>
+
+<div class="dynamic-grid">
+  <div class="resource-widget resource-flow-layout landing col-12"
+    data-query="collection:go/libraries"
+    data-cardSizes="6x6"
+    data-maxResults="6">
+  </div>
+</div>

docs/html/go/libraries/support-library/features.jd

@@ -34,11 +34,11 @@ page.title=Support Library Features
 
     <h2>See also</h2>
     <ol>
-      <li><a href="{@docRoot}tools/support-library/index.html#revisions">
+      <li><a href="{@docRoot}go/libraries/support-library/index.html#revisions">
         Support Library Revisions</a></li>
-      <li><a href="{@docRoot}tools/support-library/setup.html">
+      <li><a href="{@docRoot}go/libraries/support-library/setup.html">
         Support Library Setup</a></li>
-      <li><a href="{@docRoot}tools/testing-support-library/index.html">
+      <li><a href="{@docRoot}go/libraries/testing-support-library/index.html">
         Testing Support Library</a></li>
     </ol>
 

docs/html/go/libraries/support-library/index.jd

@@ -1,4 +1,5 @@
 page.title=Support Library
+page.metaDescription=The Android Support Library offers backward-compatible versions of a number of features that are not built into the framework.
 
 @jd:body
 

docs/html/go/libraries/testing-support-library/index.jd

@@ -1,4 +1,5 @@
 page.title=Testing Support Library
+page.metaDescription=The Android Testing Support Library provides an extensive framework for testing Android apps.
 page.image=images/tools/studio-test-module.png
 
 @jd:body

docs/html/guide/_book.yaml

@@ -365,6 +365,12 @@ toc:
   - title: App Install Location
     path: /guide/topics/data/install-location.html
 
+
+- title: Libraries
+  path: /go/libraries/index.html
+  section:
+  - include: /go/libraries/_book.yaml
+
 - title: Administration
   path: /guide/topics/admin/index.html
   section:

docs/html/jd_extras_en.js

@@ -4456,6 +4456,14 @@ METADATA['en'].collections = {
       "https://support.google.com/googleplay/answer/2651410"
     ]
   },
+  "go/libraries": {
+    "title": "",
+    "resources": [
+      "go/libraries/support-library/index.html",
+      "go/libraries/testing-support-library/index.html",
+      "go/libraries/data-binding/index.html"
+    ]
+  },
   "autolanding": {
     "title": "",
     "resources": [