media: Reject promises and close sessions in MojoCdm destructor

media/mojo/clients/mojo_cdm.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/mojo/clients/mojo_cdm.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 65 matching lines @@
 
   base::AutoLock auto_lock(lock_);
 
   // Release |decryptor_| on the correct thread. If GetDecryptor() is never
   // called but |decryptor_ptr_info_| is not null, it is not bound to any thread
   // and is safe to be released on the current thread.
   if (decryptor_task_runner_ &&
       !decryptor_task_runner_->BelongsToCurrentThread() && decryptor_) {
     decryptor_task_runner_->DeleteSoon(FROM_HERE, decryptor_.release());
   }
+
+  // Reject any outstanding promises and close all the existing sessions.
+  cdm_promise_adapter_.Clear();
+  cdm_session_tracker_.CloseRemainingSessions(session_closed_cb_);
 }
 
 // Using base::Unretained(this) below is safe because |this| owns |remote_cdm_|,
 // and if |this| is destroyed, |remote_cdm_| will be destroyed as well. Then the
 // error handler can't be invoked and callbacks won't be dispatched.
 
 void MojoCdm::InitializeCdm(const std::string& key_system,
                             const GURL& security_origin,
                             const CdmConfig& cdm_config,
                             std::unique_ptr<CdmInitializedPromise> promise) {
@@ skipping 290 matching lines @@
     cdm_session_tracker_.AddSession(session_id);
     cdm_promise_adapter_.ResolvePromise(promise_id, session_id);
   } else {
     cdm_promise_adapter_.RejectPromise(promise_id, result->exception,
                                        result->system_code,
                                        result->error_message);
   }
 }
 
 }  // namespace media