Merge "Improve keyguard UI when switch is disabled" into rvc-dev am:...

    private static final String TAG = "KeyguardUserSwitcher";

    private static final boolean ALWAYS_ON = false;

    private static final float USER_SWITCH_ENABLED_ALPHA = 1.0f;

    private static final float USER_SWITCH_DISABLED_ALPHA = 0.38f;

    private final Container mUserSwitcherContainer;

    private final KeyguardStatusBarView mStatusBarView;

                mCurrentUserView = convertView;

            }

            convertView.setTag(item);

            convertView.setAlpha(

                    item.isCurrent || item.isSwitchToEnabled ? USER_SWITCH_ENABLED_ALPHA

                            : USER_SWITCH_DISABLED_ALPHA);

            return convertView;

        }