am 89ec7c78: Merge "some javadoc improvements for virtual display and new meta tag name" into klp-dev

* commit '89ec7c781e64574f649492c14c7db33eb8e6702c':
  some javadoc improvements for virtual display and new meta tag name

core/java/android/app/ActivityManager.java

@@ -68,9 +68,10 @@ public class ActivityManager {
     private final Handler mHandler;
 
     /**
-     * <meta-data> string for a 'home' Activity that names a package that is to be
+     * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code
+     * &lt;meta-data>}</a> name for a 'home' Activity that declares a package that is to be
      * uninstalled in lieu of the declaring one.  The package named here must be
-     * signed with the same certificate as the one declaring the <meta-data>.
+     * signed with the same certificate as the one declaring the {@code &lt;meta-data>}.
      */
     public static final String META_HOME_ALTERNATE = "android.app.home.alternate";
 

core/java/android/hardware/display/VirtualDisplay.java

@@ -19,7 +19,13 @@ import android.os.IBinder;
 import android.view.Display;
 
 /**
- * Represents a virtual display.
+ * Represents a virtual display. The content of a virtual display is rendered to a
+ * {@link android.view.Surface} that you must provide to {@link DisplayManager#createVirtualDisplay
+ * createVirtualDisplay()}.
+ * <p>Because a virtual display renders to a surface provided by the application, it will be
+ * released automatically when the process terminates and all remaining windows on it will
+ * be forcibly removed. However, you should also explicitly call {@link #release} when you're
+ * done with it.
  *
  * @see DisplayManager#createVirtualDisplay
  */