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

chrome/browser/sync/profile_sync_service.cc

 // Copyright (c) 2011 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/sync/profile_sync_service.h"
 
 #include <stddef.h>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 1376 matching lines @@
 }
 
 bool ProfileSyncService::HasUnsyncedItems() const {
   if (backend_.get() && backend_initialized_) {
     return backend_->HasUnsyncedItems();
   }
   NOTREACHED();
   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();
 }
 
 void ProfileSyncService::GetModelSafeRoutingInfo(
     browser_sync::ModelSafeRoutingInfo* out) const {
   if (backend_.get() && backend_initialized_) {
     backend_->GetModelSafeRoutingInfo(out);
   } else {
@@ skipping 240 matching lines @@
         syncable::ModelTypeBitSetFromValue(
             *profile_->GetPrefs()->GetList(prefs::kAcknowledgedSyncTypes));
     syncable::ModelTypeSet registered;
     GetRegisteredDataTypes(&registered);
     syncable::ModelTypeBitSet registered_bit_set =
         syncable::ModelTypeBitSetFromSet(registered);
     unacknowledged = registered_bit_set & ~acknowledged;
   }
   return unacknowledged;
 }