PrepareMapFile    265 base/memory/shared_memory.h   bool PrepareMapFile(ScopedFILE fp, ScopedFD readonly);
PrepareMapFile    240 base/memory/shared_memory_posix.cc   return PrepareMapFile(fp.Pass(), readonly_fd.Pass());
PrepareMapFile    271 base/memory/shared_memory_posix.cc   return PrepareMapFile(fp.Pass(), readonly_fd.Pass());