Add test for resize server in ComputeAPITestCase.

Add test_resize_quota_exceeds_fails for TooManyInstances,
and fixes a typo in test_resize_deleted_flavor_fails.

Change-Id: Iec21deac3701df4ea1b6eb7e9d3da9c31924e589
Remove the global DATA

In test cases for trusted filter, a global variable is used
to fake the OAT HTTP request.

Remove this global variable, to make code cleaner.

Change-Id: Id75077575917e501d51f83d3c4b1c4250fbc84d0
Signed-off-by: Yunhong, Jiang <yunhong.jiang@intel.com>
Merge "Remove the global DATA"
Merge "Add test for resize server in ComputeAPITestCase."