IsValidDevice      62 chrome/utility/image_writer/image_writer_handler.cc   if (!IsValidDevice(device)) {
IsValidDevice      77 chrome/utility/image_writer/image_writer_handler.cc   if (!IsValidDevice(device)) {
IsValidDevice      44 chrome/utility/image_writer/image_writer_handler.h   bool IsValidDevice(const base::FilePath& device);