actionMaskForDrag  316 Source/core/loader/EmptyClients.h     virtual DragDestinationAction actionMaskForDrag(DragData*) OVERRIDE { return DragDestinationActionNone; }
actionMaskForDrag   42 Source/core/page/DragClient.h     virtual DragDestinationAction actionMaskForDrag(DragData*) = 0;
actionMaskForDrag  289 Source/core/page/DragController.cpp     m_dragDestinationAction = m_client->actionMaskForDrag(dragData);
actionMaskForDrag   52 Source/web/DragClientImpl.h     virtual WebCore::DragDestinationAction actionMaskForDrag(WebCore::DragData*) OVERRIDE;