Revert "Remove special handling for length field."

This reverts commit cda4eded9861bea93e2467bdd65fc7ba8b41dfc9.

Change-Id: Ie83ae3a1afb0bf8ca73b3a3597b149ab264274b4
tree: 1a486cb1d0c9cfadbbf4696eeab7f440fb67bb1a
  1. Android.mk
  2. CleanSpec.mk
  3. README.txt
  4. src/
  5. tests/
  6. tools/