Revert of Define printer configuration objects for Chrome OS.

chrome/browser/chromeos/printing/printer_pref_manager.cc

-// 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.
-
-#include "chrome/browser/chromeos/printing/printer_pref_manager.h"
-
-#include <memory>
-#include <string>
-#include <utility>
-#include <vector>
-
-#include "base/guid.h"
-#include "base/memory/ptr_util.h"
-#include "base/values.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/pref_names.h"
-#include "chromeos/printing/printer_configuration.h"
-#include "chromeos/printing/printer_translator.h"
-#include "components/pref_registry/pref_registry_syncable.h"
-#include "components/prefs/pref_registry_simple.h"
-#include "components/prefs/pref_service.h"
-#include "components/prefs/scoped_user_pref_update.h"
-
-namespace chromeos {
-
-namespace {
-
-const base::ListValue* GetPrinterList(Profile* profile) {
-  return profile->GetPrefs()->GetList(prefs::kPrintingDevices);
-}
-
-// Returns the printer with the matching |id| from the list |values|.  The
-// returned value is mutable and |values| could be modified.
-base::DictionaryValue* FindPrinterPref(base::ListValue* values,
-                                       const std::string& id) {
-  for (const auto& value : *values) {
-    base::DictionaryValue* printer_dictionary;
-    if (!value->GetAsDictionary(&printer_dictionary))
-      continue;
-
-    std::string printer_id;
-    if (printer_dictionary->GetString(printing::kPrinterId, &printer_id) &&
-        id == printer_id)
-      return printer_dictionary;
-  }
-
-  return nullptr;
-}
-
-void UpdatePrinterPref(
-    Profile* profile,
-    const std::string& id,
-    std::unique_ptr<base::DictionaryValue> printer_dictionary) {
-  ListPrefUpdate update(profile->GetPrefs(), prefs::kPrintingDevices);
-  base::ListValue* printer_list = update.Get();
-  DCHECK(printer_list) << "Register the printer preference";
-  base::DictionaryValue* printer = FindPrinterPref(printer_list, id);
-  if (!printer) {
-    printer_list->Append(std::move(printer_dictionary));
-    return;
-  }
-
-  printer->MergeDictionary(printer_dictionary.get());
-}
-
-}  // anonymous namespace
-
-PrinterPrefManager::PrinterPrefManager(Profile* profile) : profile_(profile) {}
-
-// static
-void PrinterPrefManager::RegisterProfilePrefs(
-    user_prefs::PrefRegistrySyncable* registry) {
-  // TODO(skau): Change to user_prefs::PrefRegistrySyncable::SYNCABLE_PREF) when
-  // sync is implemented.
-  registry->RegisterListPref(prefs::kPrintingDevices,
-                             PrefRegistry::NO_REGISTRATION_FLAGS);
-}
-
-std::vector<std::unique_ptr<Printer>> PrinterPrefManager::GetPrinters() const {
-  std::vector<std::unique_ptr<Printer>> printers;
-
-  const base::ListValue* values = GetPrinterList(profile_);
-  for (const auto& value : *values) {
-    const base::DictionaryValue* printer_dictionary = nullptr;
-    value->GetAsDictionary(&printer_dictionary);
-
-    DCHECK(printer_dictionary);
-
-    std::unique_ptr<Printer> printer =
-        printing::PrefToPrinter(*printer_dictionary);
-    if (printer)
-      printers.push_back(std::move(printer));
-  }
-
-  return printers;
-}
-
-void PrinterPrefManager::RegisterPrinter(std::unique_ptr<Printer> printer) {
-  if (printer->id().empty())
-    printer->set_id(base::GenerateGUID());
-
-  std::unique_ptr<base::DictionaryValue> updated_printer =
-      printing::PrinterToPref(*(printer.get()));
-  UpdatePrinterPref(profile_, printer->id(), std::move(updated_printer));
-}
-
-}  // namespace chromeos