Add unit tests for CdmAdapter

media/cdm/aes_decryptor.h

 // 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.
 
 #ifndef MEDIA_CRYPTO_AES_DECRYPTOR_H_
 #define MEDIA_CRYPTO_AES_DECRYPTOR_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 136 matching lines @@
   // Keeps track of current valid sessions.
   std::set<std::string> valid_sessions_;
 
   // Make session ID unique per renderer by making it static. Session
   // IDs seen by the app will be "1", "2", etc.
   static uint32_t next_session_id_;
 
   NewKeyCB new_audio_key_cb_;
   NewKeyCB new_video_key_cb_;
 
+  // As AesDecryptor may be in a separate module (e.g. ClearKeyCdm), have a copy
+  // of an empty GURL to avoid leaking the one created by GURL::EmptyGURL().
+  scoped_ptr<GURL> empty_gurl_;
+
   // Protect |new_audio_key_cb_| and |new_video_key_cb_| as they are set on the
   // main thread but called on the media thread.
   mutable base::Lock new_key_cb_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(AesDecryptor);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CRYPTO_AES_DECRYPTOR_H_