ContentChangeSignaller cc_texts (this, DCPContentProperty::TEXTS);
ContentChangeSignaller cc_assets (this, DCPContentProperty::NEEDS_ASSETS);
ContentChangeSignaller cc_kdm (this, DCPContentProperty::NEEDS_KDM);
ContentChangeSignaller cc_texts (this, DCPContentProperty::TEXTS);
ContentChangeSignaller cc_assets (this, DCPContentProperty::NEEDS_ASSETS);
ContentChangeSignaller cc_kdm (this, DCPContentProperty::NEEDS_KDM);