Fix disconnect button

Pressing disconnect wasn't working because Call.mCallService was being set to null.

Bug: 13119666
Change-Id: Ie79d52ad970e39879dc6e695172e2a28e28864d2
(cherry picked from commit be21aba2e97d783f44734d42c27e2506ec5217ac)
1 file changed
tree: 096df98446cce5e49a6d2afd02d0c53e9b3aa862
  1. libs/
  2. res/
  3. src/
  4. tests/
  5. .classpath
  6. .project
  7. Android.mk
  8. AndroidManifest.xml