Define printer configuration objects for Chrome OS.

chrome/browser/chromeos/printing/printer_configuration.h

+#ifndef CHROMEOS_PRINTING_PRINTER_CONFIG_H_
+#define CHROMEOS_PRINTING_PRINTER_CONFIG_H_
+
+namespace chromeos {
+
+// Represents a Postscript Printer Description with which the printer was setup.
+struct PPDFile {
+  // Identifier from the quirks server.  -1 otherwise.
+  int id;
+
+  std::string file_name;
+
+  // If there is a file with a later version on the quirks server, that file
+  // should be used.  The default value is 0.
+  int version_number;
+
+  // This will be true if the file was retrived from the quirks server.
+  // Otherwise, the file was saved to disk by the user.
+  bool from_quirks_server;
+}
+
+struct Printer {
+  // Globally unique identifier.  Empty indicates a new printer.
+  std::string id;

[xdai1, 2016/07/19 19:09:43]

Compared with PrinterBasicInfo
(https://cs.chromium.org/chromium/src/printing/backend/print_backend.h?rcl=0&l=26),
seems there are some items missing? e.g., printer_name, printer_description,
printer_status(not sure if it should be put here though), is_default, and
probably also is_enterprise_printer, ip_address(included in the URI?)?

[skau, 2016/07/28 20:07:15]

Description has been added.  Status will come from a different API.  We should
consider if is_default should be stored separately.  Enterprise printers will
come from a different list.  ip_address is part of the uri.

+
+  // The manufacturer of the printer.  e.g. HP
+  std::string manufacturer;
+
+  // The model of the printer. e.g. OfficeJet 415
+  std::string model;
+
+  // The full path for the printer.  Suitable for configuration in CUPS.
+  // Contains protocol, hostname, port, and queue.
+  std::string uri;
+
+  // The associated postscript printer description.
+  PPDFile ppd;
+}
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_PRINTING_PRINTER_CONFIG_H_