Expect failure on license load for expired LDL license

Merge from Widevine repo of http://go/wvgerrit/170970

RenewOnLicenseLoad.Case2 tests are failing because they
are expecting to load an expired license. However, the spec
says that the license should return KEY_EXPIRED. The test is
being updated.

Some other RenewOnLicenseLoad tests were failing because
they forgot to request the renewal.

Bug: 278750980
Test: Run tests on Luci
Change-Id: I7196db11fcf43859ba9310b87fd8ccb609e47039

libwvdrmengine/cdm/core/test/license_holder.cpp

@@ -55,6 +55,13 @@ void LicenseHolder::LoadLicense() {
   }
 }
 
+void LicenseHolder::FailLoadLicense() {
+  CdmLicenseType license_type;
+  ASSERT_NE(KEY_ADDED, cdm_engine_->AddKey(session_id_, key_response_,
+                                           &license_type, &key_set_id_))
+      << "Unexpected success loading license for " << content_id();
+}
+
 void LicenseHolder::ReloadLicense() {
   CdmResponseType status = cdm_engine_->RestoreKey(session_id_, key_set_id_);
   ASSERT_EQ(KEY_ADDED, status)