Espresso Testing for Picture in Picture

### Description
UiSelector not able to find text or actions in Picture in Picture window.

### Steps to Reproduce
An espresso test for Picture in Picture scenario.

### Expected Results
UiSelector should be able to match any text in PIP window.

assertEquals(uiDevice.findObject(
UiSelector().className("androidx.appcompat.widget.TypefacedTextView").text("Sample Text")
).exists())

### Actual Results
the assertion fails.

### AndroidX Test and Android OS Versions
android version - 10
espresso - 3.2.0

### Link to a public git repo demonstrating the problem:

No source file or public reproduction repository is provided. Start by reproducing the Espresso 3.2.0 assertion on Android 10 and investigate UiSelector lookup for the Picture in Picture window; done means the selector can find the displayed text or actions.

Written by the indexing model from the issue text.