Merge "Add contentDescription for material action mode close button" into lmp-dev

        android:clickable="true"

        android:paddingStart="8dip"

        android:src="?android:attr/actionModeCloseDrawable"

        android:contentDescription="@string/action_mode_done"

        style="?android:attr/actionModeCloseButtonStyle"

        android:layout_width="wrap_content"

        android:layout_height="match_parent"