Encrypted Media: Support Audio Decrypt-Only.

webkit/media/crypto/proxy_decryptor.h

Index: webkit/media/crypto/proxy_decryptor.h
diff --git a/webkit/media/crypto/proxy_decryptor.h b/webkit/media/crypto/proxy_decryptor.h
index b0833ff1278eb298942b20a9def8c56e72ff1d00..17bdf58b22332d6ed40dc286da6648418f14ec73 100644
--- a/webkit/media/crypto/proxy_decryptor.h
+++ b/webkit/media/crypto/proxy_decryptor.h
@@ -42,15 +42,12 @@ class ProxyDecryptor : public media::Decryptor {
     decryptor_ = decryptor.Pass();
   }
 
-  // Callback to notify that the decryptor has been created.
-  typedef base::Callback<void(Decryptor*)> DecryptorNotificationCB;
-
-  // Requests the ProxyDecryptor to notify the decryptor creation through the
-  // |decryptor_notification_cb| provided.
-  // If |decryptor_notification_cb| is null, the ProxyDecryptor should cancel
-  // the existing request and fire it with NULL immediately.
-  void RequestDecryptorNotification(
-      const DecryptorNotificationCB& decryptor_notification_cb);
+  // Requests the ProxyDecryptor to notify the decryptor when it's ready through
+  // the |decryptor_ready_cb| provided.
+  // If |decryptor_ready_cb| is null, the ProxyDecryptor should cancel the
+  // existing request and fire it with NULL immediately.
+  void RegisterDecryptorReadyNotification(

[ddorwin, 2012/12/13 05:08:25]

I thought we were using "Set".

+      const media::DecryptorReadyCB& decryptor_ready_cb);
 
   // media::Decryptor implementation.
   virtual bool GenerateKeyRequest(const std::string& key_system,
@@ -117,7 +114,7 @@ class ProxyDecryptor : public media::Decryptor {
   // safe as per the Decryptor interface.
   base::Lock lock_;
 
-  DecryptorNotificationCB decryptor_notification_cb_;
+  media::DecryptorReadyCB decryptor_ready_cb_;
 
   // The real decryptor that does decryption for the ProxyDecryptor.
   // This pointer is protected by the |lock_|.