Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/printing/cloud_print/cloud_print_url.cc

 // Copyright (c) 2011 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/printing/cloud_print/cloud_print_url.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/google/google_util.h"
+#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "googleurl/src/gurl.h"
 
 const char kDefaultCloudPrintServiceURL[] = "https://www.google.com/cloudprint";
 const char kDefaultCloudPrintSigninURL[] =
     "https://accounts.google.com/ServiceLogin?"
     "service=cloudprint&continue=https%3A%2F%2Fwww.google.com%2Fcloudprint";
 
 const char kLearnMoreURL[] =
     "https://www.google.com/support/cloudprint";
 const char kTestPageURL[] =
     "http://www.google.com/landing/cloudprint/enable.html?print=true";
 
 void CloudPrintURL::RegisterPreferences() {
   DCHECK(profile_);
-  PrefServiceSyncable* pref_service = profile_->GetPrefs();
+  PrefService* pref_service = profile_->GetPrefs();
+  // TODO(joi): Do all registration up front.
+  scoped_refptr<PrefRegistrySyncable> registry(
+      static_cast<PrefRegistrySyncable*>(
+          pref_service->DeprecatedGetPrefRegistry()));
   if (!pref_service->FindPreference(prefs::kCloudPrintServiceURL)) {
-    pref_service->RegisterStringPref(prefs::kCloudPrintServiceURL,
-                                     kDefaultCloudPrintServiceURL,
-                                     PrefServiceSyncable::UNSYNCABLE_PREF);
+    registry->RegisterStringPref(prefs::kCloudPrintServiceURL,
+                                 kDefaultCloudPrintServiceURL,
+                                 PrefRegistrySyncable::UNSYNCABLE_PREF);
   }
   if (!pref_service->FindPreference(prefs::kCloudPrintSigninURL)) {
-    pref_service->RegisterStringPref(prefs::kCloudPrintSigninURL,
-                                     kDefaultCloudPrintSigninURL,
-                                     PrefServiceSyncable::UNSYNCABLE_PREF);
+    registry->RegisterStringPref(prefs::kCloudPrintSigninURL,
+                                 kDefaultCloudPrintSigninURL,
+                                 PrefRegistrySyncable::UNSYNCABLE_PREF);
   }
 }
 
 // Returns the root service URL for the cloud print service.  The default is to
 // point at the Google Cloud Print service.  This can be overridden by the
 // command line or by the user preferences.
 GURL CloudPrintURL::GetCloudPrintServiceURL() {
   DCHECK(profile_);
   RegisterPreferences();
 
@@ skipping 52 matching lines @@
 
 GURL CloudPrintURL::GetCloudPrintLearnMoreURL() {
   GURL cloud_print_learn_more_url(kLearnMoreURL);
   return cloud_print_learn_more_url;
 }
 
 GURL CloudPrintURL::GetCloudPrintTestPageURL() {
   GURL cloud_print_learn_more_url(kTestPageURL);
   return cloud_print_learn_more_url;
 }