prepareForDestruction 2171 Source/core/dom/Document.cpp     m_markers->prepareForDestruction();
prepareForDestruction  509 Source/core/dom/Document.h     void prepareForDestruction();
prepareForDestruction   62 Source/core/dom/DocumentMarkerController.h     void prepareForDestruction();
prepareForDestruction  101 Source/core/editing/FrameSelection.h     void prepareForDestruction();
prepareForDestruction  148 Source/core/frame/LocalFrame.cpp         document()->prepareForDestruction();
prepareForDestruction  796 Source/core/loader/DocumentLoader.cpp         frame->document()->prepareForDestruction();
prepareForDestruction  257 Source/core/loader/FrameLoader.cpp     m_frame->document()->prepareForDestruction();
prepareForDestruction  260 Source/core/loader/FrameLoader.cpp     m_frame->selection().prepareForDestruction();