tree 54817b15a01efe9fe6fe246581aaecaccea6a1b6
parent 88a51cd4d8377516f693720f427511cb40e90b75
author Yabin Cui <yabinc@google.com> 1440799784 -0700
committer Yabin Cui <yabinc@google.com> 1440804960 -0700

adb: clean up transport disconnect operations.

Move operations from global functions into member functions.
Add unit test.

Change-Id: Id4543d8e78541eb08c8e629f180c605c699737ec