sync: Loop committing items without downloading updates (v2)

sync/syncable/syncable.h

 // Copyright (c) 2012 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.
 
 #ifndef SYNC_SYNCABLE_SYNCABLE_H_
 #define SYNC_SYNCABLE_SYNCABLE_H_
 #pragma once
 
 #include <algorithm>
 #include <bitset>
@@ skipping 181 matching lines @@
 };
 
 enum {
   FIELD_COUNT = PROTO_FIELDS_END,
   // Past this point we have temporaries, stored in memory only.
   BEGIN_TEMPS = PROTO_FIELDS_END,
   BIT_TEMPS_BEGIN = BEGIN_TEMPS,
 };
 
 enum BitTemp {
+  // Not to be confused with IS_UNSYNCED, this bit is used to detect local
+  // changes to items that happen during the server Commit operation.
   SYNCING = BIT_TEMPS_BEGIN,
   BIT_TEMPS_END,
 };
 
 enum {
   BIT_TEMPS_COUNT = BIT_TEMPS_END - BIT_TEMPS_BEGIN
 };
 
 class BaseTransaction;
 class WriteTransaction;
@@ skipping 1134 matching lines @@
 
 void ChangeEntryIDAndUpdateChildren(syncable::WriteTransaction* trans,
                                     syncable::MutableEntry* entry,
                                     const syncable::Id& new_id);
 
 }  // namespace syncable
 
 std::ostream& operator <<(std::ostream&, const syncable::Blob&);
 
 #endif  // SYNC_SYNCABLE_SYNCABLE_H_