[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 334b08cdd729ba50418fd8ad53b9f409d36635cb..cfa481cba21c2a06fafeaab245c8eef00ec2d9c5 100644
--- a/chrome/browser/sync/profile_sync_service.cc
+++ b/chrome/browser/sync/profile_sync_service.cc
@@ -1372,14 +1372,6 @@ 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();