Add avatar syncing for supervised users.

chrome/browser/managed_mode/supervised_user_pref_mapping_service_factory.cc

+// Copyright 2014 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/managed_mode/supervised_user_pref_mapping_service_factory.h"
+
+#include "chrome/browser/managed_mode/managed_user_shared_settings_service_factory.h"
+#include "chrome/browser/managed_mode/supervised_user_pref_mapping_service.h"
+#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+#include "components/user_prefs/user_prefs.h"
+#include "content/public/browser/browser_context.h"
+
+// static
+SupervisedUserPrefMappingService*
+SupervisedUserPrefMappingServiceFactory::GetForBrowserContext(
+    content::BrowserContext* profile) {
+  return static_cast<SupervisedUserPrefMappingService*>(
+      GetInstance()->GetServiceForBrowserContext(profile, true));
+}
+
+// static
+SupervisedUserPrefMappingServiceFactory*
+SupervisedUserPrefMappingServiceFactory::GetInstance() {
+  return Singleton<SupervisedUserPrefMappingServiceFactory>::get();
+}
+
+SupervisedUserPrefMappingServiceFactory::
+    SupervisedUserPrefMappingServiceFactory()
+    : BrowserContextKeyedServiceFactory(
+          "SupervisedUserPrefMappingService",
+          BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(ManagedUserSharedSettingsServiceFactory::GetInstance());
+}
+
+SupervisedUserPrefMappingServiceFactory::
+    ~SupervisedUserPrefMappingServiceFactory() {}
+
+BrowserContextKeyedService*
+SupervisedUserPrefMappingServiceFactory::BuildServiceInstanceFor(
+    content::BrowserContext* profile) const {
+  return new SupervisedUserPrefMappingService(
+      user_prefs::UserPrefs::Get(profile),
+      ManagedUserSharedSettingsServiceFactory::GetForBrowserContext(profile));
+}