Track printer installations for each configuration.

chrome/browser/chromeos/printing/printers_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_PRINTERS_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_PRINTING_PRINTERS_MANAGER_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 58 matching lines @@
   // forbidden.
   void AddObserver(PrintersManager::Observer* observer);
 
   // Remove |observer| so that it no longer receives notifications.  After the
   // completion of this method, the |observer| can be safely destroyed.
   void RemoveObserver(PrintersManager::Observer* observer);
 
   // Returns a ModelTypeSyncBridge for the sync client.
   PrintersSyncBridge* GetSyncBridge();
 
+  // Registers that the printer was installed in CUPS.
+  void PrinterInstalled(const Printer& printer);
+
+  // Returns true if the printer is installed in CUPS.
+  bool IsConfigurationCurrent(const Printer& printer);
+
  private:
   // Updates the in-memory recommended printer list.
   void UpdateRecommendedPrinters();
 
   Profile* profile_;
   PrefChangeRegistrar pref_change_registrar_;
 
   // The backend for profile printers.
   std::unique_ptr<PrintersSyncBridge> sync_bridge_;
 
   // 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_;
+  std::map<std::string, std::unique_ptr<Printer>> recommended_printers_;
+
+  // Map of printer ids to installation timestpamps.

[Carlson, 2017/05/05 23:59:16]

timestamps

[skau, 2017/05/08 18:38:02]

Done.

+  std::map<std::string, int64_t> installed_printer_timestamps_;

[Carlson, 2017/05/05 23:59:16]

why int64_t instead of base::Time?

[skau, 2017/05/08 18:38:02]

I didn't think about it. It's time all the way down now.

 
   base::ObserverList<Observer> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintersManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PRINTING_PRINTERS_MANAGER_H_