[Sync] Move change-related methods out of SyncManager::Observer

chrome/browser/sync/profile_sync_service.cc

Index: chrome/browser/sync/profile_sync_service.cc
diff --git a/chrome/browser/sync/profile_sync_service.cc b/chrome/browser/sync/profile_sync_service.cc
index 6600d76fd943bc8ae41f1b85db84e63893effdee..c03180cfc4b918de3d2f447d3ea7a4b3558ac291 100644
--- a/chrome/browser/sync/profile_sync_service.cc
+++ b/chrome/browser/sync/profile_sync_service.cc
@@ -1394,14 +1394,6 @@ bool ProfileSyncService::HasUnsyncedItems() const {
   return false;
 }
 
-void ProfileSyncService::LogUnsyncedItems(int level) const {
-  if (backend_.get() && backend_initialized_) {
-    return backend_->LogUnsyncedItems(level);
-  }
-  VLOG(level) << "Unsynced items not printed because backend is not "
-              << "initialized";
-}
-
 browser_sync::BackendMigrator*
     ProfileSyncService::GetBackendMigratorForTest() {
   return migrator_.get();