Fix expiry time conversion in ContentDecryptorDelegate

media/cdm/cdm_adapter_unittest.cc

Index: media/cdm/cdm_adapter_unittest.cc
diff --git a/media/cdm/cdm_adapter_unittest.cc b/media/cdm/cdm_adapter_unittest.cc
index 4c467e51d13370a70fda7a00ac4a772de77a72a0..0585ff0561c50944eec6c0d8be5005e2bb5db67a 100644
--- a/media/cdm/cdm_adapter_unittest.cc
+++ b/media/cdm/cdm_adapter_unittest.cc
@@ -30,6 +30,10 @@ MATCHER(IsNotEmpty, "") {
   return !arg.empty();
 }
 
+MATCHER(IsNullTime, "") {
+  return arg.is_null();
+}
+
 // TODO(jrummell): These tests are a subset of those in aes_decryptor_unittest.
 // Refactor aes_decryptor_unittest.cc to handle AesDecryptor directly and
 // via CdmAdapter once CdmAdapter supports decrypting functionality. There
@@ -151,6 +155,11 @@ class CdmAdapterTest : public testing::Test {
       EXPECT_CALL(cdm_client_, OnSessionKeysChangeCalled(_, _)).Times(0);
     }
 
+    // ClearKeyCdm always call OnSessionExpirationUpdate() for testing purpose.
+    EXPECT_CALL(cdm_client_,
+                OnSessionExpirationUpdate(session_id, IsNullTime()))
+        .Times(1);
+
     adapter_->UpdateSession(session_id,
                             std::vector<uint8_t>(key.begin(), key.end()),
                             CreatePromise(expected_result));