Merge "Prevent race condition by foregroundAppPackageName" into tm-qpr-dev

                    final String packageName = info.topActivity.getPackageName();

                    // If the app didn't change, there's nothing to do. Otherwise, we have to

                    // update the category and re-apply the brightness correction.

                    if (mForegroundAppPackageName != null

                            && mForegroundAppPackageName.equals(packageName)) {

                    String currentForegroundAppPackageName = mForegroundAppPackageName;

                    if (currentForegroundAppPackageName != null

                            && currentForegroundAppPackageName.equals(packageName)) {

                        return;

                    }

                    mPendingForegroundAppPackageName = packageName;