Reland of Remove ScopedVector from all other codes in media/

media/mojo/services/mojo_cdm_service.cc

Index: media/mojo/services/mojo_cdm_service.cc
diff --git a/media/mojo/services/mojo_cdm_service.cc b/media/mojo/services/mojo_cdm_service.cc
index 4f5d3d426138ae025d6af7c4c35bcf3b22603605..29c3e781b2a23ac0c7bf4a5695a6288db783b2f2 100644
--- a/media/mojo/services/mojo_cdm_service.cc
+++ b/media/mojo/services/mojo_cdm_service.cc
@@ -176,8 +176,8 @@ void MojoCdmService::OnSessionKeysChange(const std::string& session_id,
            << " has_additional_usable_key=" << has_additional_usable_key;
 
   std::vector<mojom::CdmKeyInformationPtr> keys_data;
-  for (auto* key : keys_info)
-    keys_data.push_back(mojom::CdmKeyInformation::From(*key));
+  for (auto& key : keys_info)
+    keys_data.push_back(mojom::CdmKeyInformation::From(*(key.get())));
   client_->OnSessionKeysChange(session_id, has_additional_usable_key,
                                std::move(keys_data));
 }