Correct GesturePreviewTrail.getWidth() implementation

    <fraction name="center_suggestion_percentile">36%</fraction>

    <!-- Gesture preview trail parameters -->

    <dimen name="gesture_preview_trail_start_width">12.6dp</dimen>

    <dimen name="gesture_preview_trail_start_width">10.0dp</dimen>

    <dimen name="gesture_preview_trail_end_width">2.5dp</dimen>

    <!-- Gesture floating preview text parameters -->

    <dimen name="gesture_floating_preview_text_size">24dp</dimen>

     * @return the width of a gesture trail

     */

    private static float getWidth(final int elapsedTime, final Params params) {

        final int deltaTime = params.mTrailLingerDuration - elapsedTime;

        final float deltaWidth = params.mTrailStartWidth - params.mTrailEndWidth;

        return Math.max(

                (deltaTime * deltaWidth) / params.mTrailLingerDuration, params.mTrailEndWidth);

        return params.mTrailStartWidth - (deltaWidth * elapsedTime) / params.mTrailLingerDuration;

    }

    private final RoundedLine mRoundedLine = new RoundedLine();