Add empty PtNode checking for PatriciaTriePolicy.

Bug: 9503570
Change-Id: I784d29c307c1040699fa0aadfc6a47d97f03ffe4
4 files changed
tree: f6c3eb9b6f9fc9ded643e041ad5ddd30f255e0e7
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk