Remove keybox from OEMCrypto ref

Merge from Widevine repo of http://go/wvgerrit/56526

This CL removes the test keybox from OEMCrypto reference code.

Test: unit tests
Bug: 76393338 split mock into ref and testbed
Change-Id: I4bf0eb777c6851191d0ac9ccf8e2b42c55c8f6b9

libwvdrmengine/oemcrypto/test/oemcrypto_test.cpp

@@ -445,7 +445,21 @@ TEST_F(OEMCryptoClientTest, CanLoadTestKeys) {
       << "Session tests cannot run with out a test keybox or RSA cert.";
 }
 
-class OEMCryptoKeyboxTest : public OEMCryptoClientTest {};
+class OEMCryptoKeyboxTest : public OEMCryptoClientTest {
+  virtual void SetUp() {
+    OEMCryptoClientTest::SetUp();
+    OEMCryptoResult sts = OEMCrypto_IsKeyboxValid();
+    // If the production keybox is valid, use it for these tests.  Most of the
+    // other tests will use a test keybox anyway, but it's nice to check the
+    // device ID for the real keybox if we can.
+    if (sts == OEMCrypto_SUCCESS) return;
+    printf("Production keybox is NOT valid.  All tests use test keybox.\n");
+    ASSERT_EQ(
+        OEMCrypto_SUCCESS,
+        OEMCrypto_LoadTestKeybox(reinterpret_cast<const uint8_t*>(&kTestKeybox),
+                                 sizeof(kTestKeybox)));
+  }
+};
 
 TEST_F(OEMCryptoKeyboxTest, NormalGetDeviceId) {
   OEMCryptoResult sts;

libwvdrmengine/oemcrypto/test/oemcrypto_test_android.cpp

@@ -40,6 +40,12 @@ TEST_F(OEMCryptoAndroidLMPTest, GetKeyDataImplemented) {
   }
 }
 
+TEST_F(OEMCryptoAndroidLMPTest, ValidKeybox) {
+  if (OEMCrypto_GetProvisioningMethod() == OEMCrypto_Keybox) {
+    ASSERT_EQ(OEMCrypto_SUCCESS, OEMCrypto_IsKeyboxValid());
+  }
+}
+
 TEST_F(OEMCryptoAndroidLMPTest, MinVersionNumber9) {
   uint32_t version = OEMCrypto_APIVersion();
   ASSERT_LE(9u, version);