Merge \"Should not report unsuccessful attempt if pattern size < minimal size\" into nyc-mr1-dev

            private void startCheckPattern(final List<LockPatternView.Cell> pattern,

                    final Intent intent) {

                if (pattern.size() < LockPatternUtils.MIN_PATTERN_REGISTER_FAIL) {

                    mCredentialCheckResultTracker.setResult(false, intent, 0, mEffectiveUserId);

                    // Pattern size is less than the minimum, do not count it as an fail attempt.

                    onPatternChecked(false, intent, 0, mEffectiveUserId, false /* newResult */);

                    return;

                }