EME: Close existing sessions on CDM failure

content/renderer/pepper/content_decryptor_delegate.cc

Index: content/renderer/pepper/content_decryptor_delegate.cc
diff --git a/content/renderer/pepper/content_decryptor_delegate.cc b/content/renderer/pepper/content_decryptor_delegate.cc
index fc588545138ecab2c5432438db4b2819ae51633a..7aace26e744bdba79ea4ddbe2a60df06cd86d66f 100644
--- a/content/renderer/pepper/content_decryptor_delegate.cc
+++ b/content/renderer/pepper/content_decryptor_delegate.cc
@@ -743,6 +743,7 @@ void ContentDecryptorDelegate::OnPromiseResolvedWithSession(uint32_t promise_id,
                                                             PP_Var session_id) {
   StringVar* session_id_string = StringVar::FromPPVar(session_id);
   DCHECK(session_id_string);
+  cdm_session_tracker_.AddSession(session_id_string->value());
   cdm_promise_adapter_.ResolvePromise(promise_id, session_id_string->value());
 }
 
@@ -822,13 +823,12 @@ void ContentDecryptorDelegate::OnSessionExpirationChange(
 }
 
 void ContentDecryptorDelegate::OnSessionClosed(PP_Var session_id) {
-  if (session_closed_cb_.is_null())
-    return;
-
   StringVar* session_id_string = StringVar::FromPPVar(session_id);
   DCHECK(session_id_string);
 
-  session_closed_cb_.Run(session_id_string->value());
+  cdm_session_tracker_.RemoveSession(session_id_string->value());
+  if (!session_closed_cb_.is_null())
+    session_closed_cb_.Run(session_id_string->value());
 }
 
 void ContentDecryptorDelegate::DecoderInitializeDone(
@@ -1258,6 +1258,8 @@ void ContentDecryptorDelegate::SatisfyAllPendingCallbacksOnError() {
     video_decode_cb_.ResetAndReturn().Run(media::Decryptor::kError, NULL);
 
   cdm_promise_adapter_.Clear();
+
+  cdm_session_tracker_.CloseRemainingSessions(session_closed_cb_);
 }
 
 }  // namespace content