Additive 136 Source/core/dom/DocumentStyleSheetCollection.cpp if (change.styleResolverUpdateType != Additive) { Additive 102 Source/core/dom/ShadowTreeStyleSheetCollection.cpp if (change.styleResolverUpdateType != Additive) { Additive 104 Source/core/dom/TreeScopeStyleSheetCollection.cpp return hasInsertions ? Reset : Additive; Additive 153 Source/core/dom/TreeScopeStyleSheetCollection.cpp if (updateType != Additive) {