ModificationCallback  121 extensions/browser/extension_registry.cc     const ExtensionSet::ModificationCallback& callback) {
ModificationCallback  117 extensions/browser/extension_registry.h       const ExtensionSet::ModificationCallback& callback);
ModificationCallback  128 extensions/common/extension_set.h       const ModificationCallback& modification_callback) {
ModificationCallback  141 extensions/common/extension_set.h   ModificationCallback modification_callback_;