Change-Id: I4c9b7a937103f3978cbed6629ee4057018b80eae
More cleanup. Also allow some tests to run even when TPM is already started.
Change-Id: I23558b96a1de55bbeca42dbf2e44f6802a0ec85b
Reorganize and standardize behavior of tests.
Change-Id: Id32fd09211a72deaa66a3dd0f973d35506ff96f2
BUG=433
TEST=ran all the tests I could run without TPM-free BIOS
Review URL: http://codereview.chromium.org/3389004