Merge "Fix invalid bounds detection in ExploreByTouchHelper" into lmp-mr1-dev

    /** Default class name used for virtual views. */

    private static final String DEFAULT_CLASS_NAME = View.class.getName();

    /** Default bounds used to determine if the client didn't set any. */

    private static final Rect INVALID_PARENT_BOUNDS = new Rect(

            Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MIN_VALUE, Integer.MIN_VALUE);

    // Temporary, reusable data structures.

    private final Rect mTempScreenRect = new Rect();

    private final Rect mTempParentRect = new Rect();

        // Ensure the client has good defaults.

        node.setEnabled(true);

        node.setClassName(DEFAULT_CLASS_NAME);

        node.setBoundsInParent(INVALID_PARENT_BOUNDS);

        // Allow the client to populate the node.

        onPopulateNodeForVirtualView(virtualViewId, node);

        }

        node.getBoundsInParent(mTempParentRect);

        if (mTempParentRect.isEmpty()) {

        if (mTempParentRect.equals(INVALID_PARENT_BOUNDS)) {

            throw new RuntimeException("Callbacks must set parent bounds in "

                    + "populateNodeForVirtualViewId()");

        }