Multiple Renewal Keys and Logging

In this code update we add a test to ensure that the White-box API
implementation handle seeing multiple renewal keys correctly. Since
there should be no more than one renewal key in a license response, upon
seeing a second renewal key, the implementation should return a
WB_RESULT_INVALID_PARAMETER code.

Due to changes in how Chrome manages CHECKS and DCHECKS, this code has
been updated to use the new headers.

api/license_whitebox_masked_decrypt_test.cc

@@ -11,7 +11,6 @@
 #include "api/license_whitebox_test_base.h"
 #include "api/test_data.h"
 #include "api/test_license_builder.h"
-#include "base/logging.h"
 #include "crypto_utils/crypto_util.h"
 #include "crypto_utils/rsa_key.h"
 #include "testing/gtest/include/gtest/gtest.h"