media: CdmFactory creates CDM (MediaKeys) asynchronously.

media/cdm/default_cdm_factory.h

Index: media/cdm/default_cdm_factory.h
diff --git a/media/cdm/default_cdm_factory.h b/media/cdm/default_cdm_factory.h
index 72e0e8d941b85b33f496e700f403ca1c9144aa05..7060c7c47b5b730cd7ce85a30a04c52e44b6a50e 100644
--- a/media/cdm/default_cdm_factory.h
+++ b/media/cdm/default_cdm_factory.h
@@ -16,16 +16,16 @@ class DefaultCdmFactory : public CdmFactory {
   ~DefaultCdmFactory() final;
 
   // CdmFactory implementation.
-  scoped_ptr<MediaKeys> Create(
-      const std::string& key_system,
-      bool allow_distinctive_identifier,
-      bool allow_persistent_state,
-      const GURL& security_origin,
-      const SessionMessageCB& session_message_cb,
-      const SessionClosedCB& session_closed_cb,
-      const LegacySessionErrorCB& legacy_session_error_cb,
-      const SessionKeysChangeCB& session_keys_change_cb,
-      const SessionExpirationUpdateCB& session_expiration_update_cb) final;
+  void Create(const std::string& key_system,
+              bool allow_distinctive_identifier,
+              bool allow_persistent_state,
+              const GURL& security_origin,
+              const SessionMessageCB& session_message_cb,
+              const SessionClosedCB& session_closed_cb,
+              const LegacySessionErrorCB& legacy_session_error_cb,
+              const SessionKeysChangeCB& session_keys_change_cb,
+              const SessionExpirationUpdateCB& session_expiration_update_cb,
+              const CdmCreatedCB& cdm_created_cb) final;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DefaultCdmFactory);