createNewBackForwardItem  156 Source/core/page/HistoryController.cpp     createNewBackForwardItem(frame, item, false);
createNewBackForwardItem  257 Source/core/page/HistoryController.cpp         createNewBackForwardItem(frame, item, true);
createNewBackForwardItem  160 Source/core/page/HistoryController.h     void createNewBackForwardItem(LocalFrame*, HistoryItem*, bool doClip);