Define printer configuration objects for Chrome OS.

chromeos/printing/printer_translator.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 CHROMEOS_PRINTING_PRINTER_TRANSLATOR_H_
+#define CHROMEOS_PRINTING_PRINTER_TRANSLATOR_H_
+
+#include "chromeos/printing/printer_configuration.h"
+
+namespace base {
+class DictionaryValue;
+}
+
+namespace chromeos {
+namespace printing {
+
+extern const char kPrinterId[];
+
+// Merge the fields in |pref| into |printer|. Returns false if a required field
+// is missing.
+bool MergePrinterPreference(const base::DictionaryValue& pref,

[Lei Zhang, 2016/08/02 02:35:53]

Same as below.

[skau, 2016/08/02 20:17:22]

There could be instances where we would want to apply a partial update but I
don't have a good use case in mind right now. I'll change it.

+                            Printer* printer);
+
+// Updates the dictionary |pref| with the attributes of |printer|.
+void PrinterToPref(const Printer& printer, base::DictionaryValue* pref);

[Lei Zhang, 2016/08/02 02:35:52]

Are there any situations where you actually want to update an existing |pref|?
Can this be: std::unique_ptr<DictionaryValue> PrinterToPref(const Printer&
printer) ?

[skau, 2016/08/02 20:17:22]

This should return a new dictionary.  In the case where we update an existing
record, we could save the allocation of a new dictionary but that might be a
premature optimization.

+
+}  // namespace printing
+}  // namespace chromeos
+
+#endif  // CHROMEOS_PRINTING_PRINTER_TRANSLATOR_H_