Make it possible to build without enable_supervised_users.

chrome/browser/sync/profile_sync_service_factory.cc

Index: chrome/browser/sync/profile_sync_service_factory.cc
diff --git a/chrome/browser/sync/profile_sync_service_factory.cc b/chrome/browser/sync/profile_sync_service_factory.cc
index 957603e0707bf102c6f46a237bb5ec3aadf7eccf..6429113937285514f55105a72cdddf50518cbdcf 100644
--- a/chrome/browser/sync/profile_sync_service_factory.cc
+++ b/chrome/browser/sync/profile_sync_service_factory.cc
@@ -32,7 +32,6 @@
 #include "chrome/browser/spellchecker/spellcheck_factory.h"
 #include "chrome/browser/sync/chrome_sync_client.h"
 #include "chrome/browser/sync/sessions/sync_sessions_web_contents_router_factory.h"
-#include "chrome/browser/sync/supervised_user_signin_manager_wrapper.h"
 #include "chrome/browser/sync/user_event_service_factory.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/undo/bookmark_undo_service_factory.h"
@@ -61,6 +60,7 @@
 #include "chrome/browser/supervised_user/legacy/supervised_user_sync_service_factory.h"
 #include "chrome/browser/supervised_user/supervised_user_service_factory.h"
 #include "chrome/browser/supervised_user/supervised_user_settings_service_factory.h"
+#include "chrome/browser/sync/supervised_user_signin_manager_wrapper.h"
 #endif  // BUILDFLAG(ENABLE_SUPERVISED_USERS)
 
 #if !defined(OS_ANDROID)
@@ -215,8 +215,6 @@ KeyedService* ProfileSyncServiceFactory::BuildServiceInstanceFor(
 #endif  // defined(OS_WIN)
 
   if (!local_sync_backend_enabled) {
-    SigninManagerBase* signin = SigninManagerFactory::GetForProfile(profile);
-
     // Always create the GCMProfileService instance such that we can listen to
     // the profile notifications and purge the GCM store when the profile is
     // being signed out.
@@ -226,8 +224,11 @@ KeyedService* ProfileSyncServiceFactory::BuildServiceInstanceFor(
     // once http://crbug.com/171406 has been fixed.
     AboutSigninInternalsFactory::GetForProfile(profile);
 
+#if BUILDFLAG(ENABLE_SUPERVISED_USERS)
+    SigninManagerBase* signin = SigninManagerFactory::GetForProfile(profile);
     init_params.signin_wrapper =
         base::MakeUnique<SupervisedUserSigninManagerWrapper>(profile, signin);
+#endif
     init_params.oauth2_token_service =
         ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
     init_params.gaia_cookie_manager_service =