Merge "Add back theme for overlay chips"

<com.android.systemui.screenshot.OverlayActionChip

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:id="@+id/overlay_action_chip"

    android:theme="@style/FloatingOverlay"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:layout_marginStart="@dimen/overlay_action_chip_margin_start"