am b8ea399e: DO NOT MERGE Fix missing "manage conference" option.

    <include layout="@layout/manage_conference_call_button"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_alignTop="@id/photo" />

        android:layout_below="@id/primary_call_info_container" />

    <fragment android:name="com.android.incallui.VideoCallFragment"

        android:layout_alignParentStart="true"