Merge "Make ArrayMap.EMPTY immutable" into lmp-mr1-dev

    }

    private ArrayMap(boolean immutable) {

        mHashes = EmptyArray.INT;

        // If this is immutable, use the sentinal EMPTY_IMMUTABLE_INTS

        // instance instead of the usual EmptyArray.INT. The reference

        // is checked later to see if the array is allowed to grow.

        mHashes = immutable ? EMPTY_IMMUTABLE_INTS : EmptyArray.INT;

        mArray = EmptyArray.OBJECT;

        mSize = 0;

    }