db0911df54
(This is a merge of http://go/wvgerrit/46203) Previously, IsProvisioned() only confirmed the existence of a certificate file, not whether the contents of that file were actually valid. This patch changes its behavior so that it actually validates the loadability of the file before returning. This is sufficient to resolve Netflix's use case in b/65835227, but it is only part of the solution for Android's use case in b/72353451. A second patch will be required to cover cases where the certificate can be loaded but cannot be used with the current OEMCrypto or with the server. Bug: 65835227 Bug: 72353451 Test: Android and CE CDM unit tests Change-Id: Id3987a6f3c4097d7d356dfa631b023287354439a