setPictureInPictureArgs: Device doesn't support picture-in-picture mode.

Can not run this sample on Android emulator (API O , Target Android 7+ Google API).
the exception is,

``` java
java.lang.IllegalStateException: setPictureInPictureArgs: Device doesn't support picture-in-picture mode.
at android.os.Parcel.readException(Parcel.java:1923)
at android.os.Parcel.readException(Parcel.java:1861)
at android.app.IActivityManager$Stub$Proxy.setPictureInPictureArgs(IActivityManager.java:9378)
at android.app.Activity.setPictureInPictureArgs(Activity.java:1984)
at com.example.pip.MainActivity.updatePictureInPictureActions(MainActivity.java:156)
at com.example.pip.MainActivity$2.onMovieStarted(MainActivity.java:101)
at com.example.pip.widget.MovieView.play(MovieView.java:350)
at com.example.pip.widget.MovieView$3.onPrepared(MovieView.java:384)
at android.media.MediaPlayer$EventHandler.handleMessage(MediaPlayer.java:3170)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:156)
at android.app.ActivityThread.main(ActivityThread.java:6440)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:746)
```

Start at MainActivity.updatePictureInPictureActions (line 156) and reproduce the failure on the stated Android API O emulator configuration. Trace the sample flow through MainActivity and MovieView, then establish whether the issue requires a code change or documentation for devices that do not support picture-in-picture; done means the sample behavior is verified for that configuration.

Written by the indexing model from the issue text.