Merge "Check if RssAnon and swap were read" into rvc-dev

    public static MemorySnapshot readMemorySnapshotFromProcfs(int pid) {

        long[] output = new long[STATUS_KEYS.length];

        output[0] = -1;

        output[3] = -1;

        output[4] = -1;

        Process.readProcLines("/proc/" + pid + "/status", STATUS_KEYS, output);

        if (output[0] == -1 || (output[3] == 0 && output[4] == 0)) {

            // Could not open file or anon rss / swap are 0 indicating the process is in a zombie

            // state.

        if (output[0] == -1 || output[3] == -1 || output[4] == -1) {

            // Could not open or parse file.

            return null;

        }

        final MemorySnapshot snapshot = new MemorySnapshot();