media: Add log in CdmSessionAdapter

media/blink/cdm_session_adapter.cc

Index: media/blink/cdm_session_adapter.cc
diff --git a/media/blink/cdm_session_adapter.cc b/media/blink/cdm_session_adapter.cc
index 5b98d039a4fdefca7abcc58d504ed78bd58352a5..d52ccadce7f9db57d7d8d0f35801ddefba67d911 100644
--- a/media/blink/cdm_session_adapter.cc
+++ b/media/blink/cdm_session_adapter.cc
@@ -101,6 +101,7 @@ void CdmSessionAdapter::LoadSession(
     CdmSessionType session_type,
     const std::string& session_id,
     std::unique_ptr<NewSessionCdmPromise> promise) {
+  DVLOG(2) << __func__ << ": session_id = " << session_id;
   cdm_->LoadSession(session_type, session_id, std::move(promise));
 }
 
@@ -108,18 +109,21 @@ void CdmSessionAdapter::UpdateSession(
     const std::string& session_id,
     const std::vector<uint8_t>& response,
     std::unique_ptr<SimpleCdmPromise> promise) {
+  DVLOG(3) << __func__ << ": session_id = " << session_id;
   cdm_->UpdateSession(session_id, response, std::move(promise));
 }
 
 void CdmSessionAdapter::CloseSession(
     const std::string& session_id,
     std::unique_ptr<SimpleCdmPromise> promise) {
+  DVLOG(2) << __func__ << ": session_id = " << session_id;
   cdm_->CloseSession(session_id, std::move(promise));
 }
 
 void CdmSessionAdapter::RemoveSession(
     const std::string& session_id,
     std::unique_ptr<SimpleCdmPromise> promise) {
+  DVLOG(2) << __func__ << ": session_id = " << session_id;
   cdm_->RemoveSession(session_id, std::move(promise));
 }
 
@@ -141,7 +145,7 @@ void CdmSessionAdapter::OnCdmCreated(
     base::TimeTicks start_time,
     const scoped_refptr<ContentDecryptionModule>& cdm,
     const std::string& error_message) {
-  DVLOG(2) << __func__ << ": "
+  DVLOG(1) << __func__ << ": "
            << (cdm ? "success" : "failure (" + error_message + ")");
   DCHECK(!cdm_);
 
@@ -178,8 +182,10 @@ void CdmSessionAdapter::OnSessionMessage(
   WebContentDecryptionModuleSessionImpl* session = GetSession(session_id);
   DLOG_IF(WARNING, !session) << __func__ << " for unknown session "
                              << session_id;
-  if (session)
+  if (session) {
+    DVLOG(3) << __func__ << ": session_id = " << session_id;
     session->OnSessionMessage(message_type, message);
+  }
 }
 
 void CdmSessionAdapter::OnSessionKeysChange(const std::string& session_id,
@@ -188,9 +194,15 @@ void CdmSessionAdapter::OnSessionKeysChange(const std::string& session_id,
   WebContentDecryptionModuleSessionImpl* session = GetSession(session_id);
   DLOG_IF(WARNING, !session) << __func__ << " for unknown session "
                              << session_id;
-  if (session)
+  if (session) {
+    DVLOG(2) << __func__ << ": session_id = " << session_id;
+    DVLOG(2) << "  - has_additional_usable_key = " << has_additional_usable_key;
+    for (const CdmKeyInformation* info : keys_info)
+      DVLOG(2) << "  - " << *info;
+
     session->OnSessionKeysChange(has_additional_usable_key,
                                  std::move(keys_info));
+  }
 }
 
 void CdmSessionAdapter::OnSessionExpirationUpdate(const std::string& session_id,
@@ -198,16 +210,25 @@ void CdmSessionAdapter::OnSessionExpirationUpdate(const std::string& session_id,
   WebContentDecryptionModuleSessionImpl* session = GetSession(session_id);
   DLOG_IF(WARNING, !session) << __func__ << " for unknown session "
                              << session_id;
-  if (session)
+  if (session) {
+    DVLOG(2) << __func__ << ": session_id = " << session_id;
+    if (new_expiry_time.is_null())
+      DVLOG(2) << "  - new_expiry_time = NaN";
+    else
+      DVLOG(2) << "  - new_expiry_time = " << new_expiry_time;
+
     session->OnSessionExpirationUpdate(new_expiry_time);
+  }
 }
 
 void CdmSessionAdapter::OnSessionClosed(const std::string& session_id) {
   WebContentDecryptionModuleSessionImpl* session = GetSession(session_id);
   DLOG_IF(WARNING, !session) << __func__ << " for unknown session "
                              << session_id;
-  if (session)
+  if (session) {
+    DVLOG(2) << __func__ << ": session_id = " << session_id;
     session->OnSessionClosed();
+  }
 }
 
 WebContentDecryptionModuleSessionImpl* CdmSessionAdapter::GetSession(