[Chromecast] Allow CMA backend to notify of key expiry

chromecast/media/cdm/browser_cdm_cast.h

 // 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.
 
 #ifndef CHROMECAST_MEDIA_CDM_BROWSER_CDM_CAST_H_
 #define CHROMECAST_MEDIA_CDM_BROWSER_CDM_CAST_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner_helpers.h"
 #include "base/threading/thread_checker.h"
+#include "chromecast/public/media/cast_key_status.h"
 #include "media/base/media_keys.h"
 #include "media/base/player_tracker.h"
 #include "media/cdm/json_web_key.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 class PlayerTrackerImpl;
@@ skipping 26 matching lines @@
   int RegisterPlayer(const base::Closure& new_key_cb,
                      const base::Closure& cdm_unset_cb) override;
   void UnregisterPlayer(int registration_id) override;
 
   // Returns the decryption context needed to decrypt frames encrypted with
   // |key_id|.
   // Returns null if |key_id| is not available.
   virtual scoped_ptr<DecryptContextImpl> GetDecryptContext(
       const std::string& key_id) const = 0;
 
+  // Notifies that key status has changed (e.g. if expiry is detected by
+  // hardware decoder).
+  virtual void SetKeyStatus(const std::string& key_id,
+                            CastKeyStatus key_status,
+                            uint32_t system_code) = 0;
+
  protected:
   ~BrowserCdmCast() override;
 
   void OnSessionMessage(const std::string& session_id,
                         const std::vector<uint8_t>& message,
                         const GURL& destination_url,
                         ::media::MediaKeys::MessageType message_type);
   void OnSessionClosed(const std::string& session_id);
   void OnSessionKeysChange(const std::string& session_id,
-                           const ::media::KeyIdAndKeyPairs& keys);
+                           bool newly_usable_keys,
+                           ::media::CdmKeysInfo keys_info);
+
+  void KeyIdAndKeyPairsToInfo(const ::media::KeyIdAndKeyPairs& keys,
+                              ::media::CdmKeysInfo* key_info);
 
  private:
   friend class BrowserCdmCastUi;
 
   // Allow subclasses to override to provide key sysytem specific
   // initialization.
   virtual void InitializeInternal();
 
   ::media::SessionMessageCB session_message_cb_;
   ::media::SessionClosedCB session_closed_cb_;
@@ skipping 47 matching lines @@
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserCdmCastUi);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CDM_BROWSER_CDM_CAST_H_