docs: Fixing links to moved Fragments guide, + redirect

am: f53968061c

Change-Id: I1aaf11fd83e4489f3a22df600e7edeb487749cf0

core/java/android/app/Fragment.java

@@ -194,7 +194,7 @@ final class FragmentState implements Parcelable {
  * <div class="special reference">
  * <h3>Developer Guides</h3>
  * <p>For more information about using fragments, read the
- * <a href="{@docRoot}guide/topics/fundamentals/fragments.html">Fragments</a> developer guide.</p>
+ * <a href="{@docRoot}guide/components/fragments.html">Fragments</a> developer guide.</p>
  * </div>
  *
  * <a name="OlderPlatforms"></a>

core/java/android/app/FragmentManager.java

@@ -59,7 +59,7 @@ import java.util.List;
  * <div class="special reference">
  * <h3>Developer Guides</h3>
  * <p>For more information about using fragments, read the
- * <a href="{@docRoot}guide/topics/fundamentals/fragments.html">Fragments</a> developer guide.</p>
+ * <a href="{@docRoot}guide/components/fragments.html">Fragments</a> developer guide.</p>
  * </div>
  *
  * While the FragmentManager API was introduced in

core/java/android/app/package.html

@@ -34,7 +34,7 @@ action bar.</p>
 <p>For information about using some the classes in this package, see the following
 documents: <a href="{@docRoot}guide/topics/fundamentals/activities.html">Activities</a>, <a
 href="{@docRoot}guide/topics/fundamentals/services.html">Services</a>, <a
-href="{@docRoot}guide/topics/fundamentals/fragments.html">Fragments</a>, <a
+href="{@docRoot}guide/components/fragments.html">Fragments</a>, <a
 href="{@docRoot}guide/topics/ui/actionbar.html">Using the Action Bar</a>, <a
 href="{@docRoot}guide/topics/ui/dialogs.html">Creating Dialogs</a>, and <a
 href="{@docRoot}guide/topics/ui/notifiers/index.html">Notifying the User</a>.</p>

docs/html/_redirects.yaml

@@ -1,6 +1,8 @@
 # For information about this file's format, see
 # https://developers.google.com/internal/publishing/redirects
 redirects:
+- from: /guide/topics/fundamentals/fragments.html
+  to: /guide/components/fragments.html
 - from: /about/versions/index.html
   to: /about/index.html
 - from: /about/versions/api-levels.html