media: Add DefaultMediaPermission.

media/cdm/proxy_decryptor.cc

 // Copyright 2013 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/cdm/proxy_decryptor.h"
 
 #include <cstring>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "media/base/cdm_callback_promise.h"
 #include "media/base/cdm_factory.h"
 #include "media/base/cdm_key_information.h"
 #include "media/base/key_systems.h"
+#include "media/base/media_permission.h"
 #include "media/cdm/json_web_key.h"
 #include "media/cdm/key_system_names.h"
 
 namespace media {
 
 // Special system code to signal a closed persistent session in a SessionError()
 // call. This is needed because there is no SessionClosed() call in the prefixed
 // EME API.
 const int kSessionClosedSystemCode = 29127;
 
-ProxyDecryptor::ProxyDecryptor(const KeyAddedCB& key_added_cb,
+ProxyDecryptor::ProxyDecryptor(MediaPermission* media_permission,
+                               const KeyAddedCB& key_added_cb,
                                const KeyErrorCB& key_error_cb,
                                const KeyMessageCB& key_message_cb)
     : key_added_cb_(key_added_cb),
       key_error_cb_(key_error_cb),
       key_message_cb_(key_message_cb),
       is_clear_key_(false),
       weak_ptr_factory_(this) {
+  DCHECK(media_permission);
   DCHECK(!key_added_cb_.is_null());
   DCHECK(!key_error_cb_.is_null());
   DCHECK(!key_message_cb_.is_null());
 }
 
 ProxyDecryptor::~ProxyDecryptor() {
   // Destroy the decryptor explicitly before destroying the plugin.
   media_keys_.reset();
 }
 
@@ skipping 248 matching lines @@
   bool is_persistent =
       session_type == PersistentSession || session_type == LoadSession;
   active_sessions_.insert(std::make_pair(session_id, is_persistent));
 
   // For LoadSession(), generate the KeyAdded event.
   if (session_type == LoadSession)
     GenerateKeyAdded(session_id);
 }
 
 }  // namespace media