Update VpnTest for new restricted API

This patch addressses the mocked UserManager for the context
of the user which is created by createContextAsUser.

Bug: 171529940
Bug: 175883995
Test: FrameworksNetTests
Change-Id: Ie72d08c765ed7fb7083c0c4b7ee02a43c23d1707
1 file changed
tree: b46a13bfdd07c9892504d060785c976f3bf8807a
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS