[CUPS] Implement the enterprise icon for printers in Print Preview Dialog.

chrome/browser/chromeos/printing/printer_pref_manager.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_PRINTING_PRINTER_PREF_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_PRINTING_PRINTER_PREF_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 22 matching lines @@
 
   // Returns the printers that are saved in preferences.
   std::vector<std::unique_ptr<Printer>> GetPrinters() const;
 
   // Returns printers from enterprise policy.
   std::vector<std::unique_ptr<Printer>> GetRecommendedPrinters() const;
 
   // Returns the printer with id |printer_id|.
   std::unique_ptr<Printer> GetPrinter(const std::string& printer_id) const;
 
+  // Returns true if the printer is enterprise policy controlled printer.
+  bool IsEnterprisePrinter(const std::string& printer_id) const;

[skau, 2017/01/10 19:55:52]

I would make this a property of printer rather than lookup it up by id.  It'll
make it much simpler to work with and we know if it's an enterprise printer when
we call GetPrinter.

[xdai1, 2017/01/10 21:45:28]

Done. Thanks for the suggestion!

+
   // Adds or updates a printer. Printers are identified by the id field.  Use an
   // empty id to add a new printer.
   void RegisterPrinter(std::unique_ptr<Printer> printer);
 
   // Remove printer from preferences with the id |printer_id|.  Returns true if
   // the printer was successfully removed.
   bool RemovePrinter(const std::string& printer_id);
 
  private:
   // Updates the in-memory recommended printer list.
   void UpdateRecommendedPrinters();
 
   Profile* profile_;
   PrefChangeRegistrar pref_change_registrar_;
 
   // Contains the keys for all recommended printers in order so we can return
   // the list of recommended printers in the order they were received.
   std::vector<std::string> recommended_printer_ids_;
   std::map<std::string, std::unique_ptr<base::DictionaryValue>>
       recommended_printers_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PRINTING_PRINTER_PREF_MANAGER_H_