This is a squash of several different CLs with changes only affecting
policy_integration_test.cpp
* An integration test for secure buffers
[ Merge of http://go/wvgerrit/113905 ]
This extends the previous CL that loads a license that has a key that
requires a secure buffer. It now creates a secure buffer and tries to
decrypt to it.
Bug: 38004627
* Test loading license requiring secure buffer
[ Merge of http://go/wvgerrit/113903 ]
This adds a policy test to verify we can load a license that requires
hardware secure buffers.
Bug: 38004627
Test: WV unit/integration tests
Change-Id: I1cc0b607ddf5b43fc6b7ba648f3c78d6163e14e9
3176f5f66f