Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/custom_handlers/protocol_handler_registry.cc

 // Copyright (c) 2012 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/custom_handlers/protocol_handler_registry.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "chrome/browser/custom_handlers/register_protocol_handler_infobar_delegate.h"
 #include "chrome/browser/net/chrome_url_request_context.h"
+#include "chrome/browser/prefs/pref_registry_syncable.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/custom_handlers/protocol_handler.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "grit/generated_resources.h"
 #include "net/base/network_delegate.h"
 #include "net/url_request/url_request_redirect_job.h"
@@ skipping 701 matching lines @@
   // protocol handler registry after it was deleted.
   // Observers remove themselves from this list when they are deleted; so
   // we delete the last item until none are left in the list.
   while (!default_client_observers_.empty()) {
     delete default_client_observers_.back();
   }
 }
 
 // static
 void ProtocolHandlerRegistry::RegisterUserPrefs(
-    PrefServiceSyncable* pref_service) {
-  pref_service->RegisterListPref(prefs::kRegisteredProtocolHandlers,
-                                 PrefServiceSyncable::UNSYNCABLE_PREF);
-  pref_service->RegisterListPref(prefs::kIgnoredProtocolHandlers,
-                                 PrefServiceSyncable::UNSYNCABLE_PREF);
-  pref_service->RegisterBooleanPref(prefs::kCustomHandlersEnabled, true,
-                                    PrefServiceSyncable::UNSYNCABLE_PREF);
+    PrefRegistrySyncable* registry) {
+  registry->RegisterListPref(prefs::kRegisteredProtocolHandlers,
+                             PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterListPref(prefs::kIgnoredProtocolHandlers,
+                             PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(prefs::kCustomHandlersEnabled, true,
+                                PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 ProtocolHandlerRegistry::~ProtocolHandlerRegistry() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(default_client_observers_.empty());
 }
 
 void ProtocolHandlerRegistry::PromoteHandler(const ProtocolHandler& handler) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(IsRegistered(handler));
@@ skipping 148 matching lines @@
 
 scoped_ptr<ProtocolHandlerRegistry::JobInterceptorFactory>
 ProtocolHandlerRegistry::CreateJobInterceptorFactory() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   // this is always created on the UI thread (in profile_io's
   // InitializeOnUIThread. Any method calls must be done
   // on the IO thread (this is checked).
   return scoped_ptr<JobInterceptorFactory>(new JobInterceptorFactory(
       io_thread_delegate_));
 }