am d424b8d9: Prepare for a new IActivityController method.

Merge commit 'd424b8d9ccb569c4a2f01de248068fd130e3bd82' into gingerbread-plus-aosp

* commit 'd424b8d9ccb569c4a2f01de248068fd130e3bd82':
  Prepare for a new IActivityController method.