Separate the NTP app ordering from the app list app ordering

chrome/browser/extensions/app_sync_data.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 CHROME_BROWSER_EXTENSIONS_APP_SYNC_DATA_H_
 #define CHROME_BROWSER_EXTENSIONS_APP_SYNC_DATA_H_
 
 #include "chrome/browser/extensions/extension_sync_data.h"
 #include "sync/api/string_ordinal.h"
 #include "sync/api/sync_change.h"
@@ skipping 14 matching lines @@
 // A class that encapsulates the synced properties of an Application.
 class AppSyncData {
  public:
   AppSyncData();
   explicit AppSyncData(const syncer::SyncData& sync_data);
   explicit AppSyncData(const syncer::SyncChange& sync_change);
   AppSyncData(const Extension& extension,
               bool enabled,
               bool incognito_enabled,
               const syncer::StringOrdinal& app_launch_ordinal,
-              const syncer::StringOrdinal& page_ordinal);
+              const syncer::StringOrdinal& page_ordinal,
+              const syncer::StringOrdinal& app_list_ordinal);
   ~AppSyncData();
 
   // Retrive sync data from this class.
   syncer::SyncData GetSyncData() const;
   syncer::SyncChange GetSyncChange(
       syncer::SyncChange::SyncChangeType change_type) const;
 
   const std::string& id() const { return extension_sync_data_.id(); }
 
   bool uninstalled() const { return extension_sync_data_.uninstalled(); }
 
   // These ordinals aren't necessarily valid. Some applications don't have
   // valid ordinals because they don't appear on the new tab page.
   const syncer::StringOrdinal& app_launch_ordinal() const {
     return app_launch_ordinal_;
   }
   const syncer::StringOrdinal& page_ordinal() const { return page_ordinal_; }
-
+  const syncer::StringOrdinal& app_list_ordinal() const {
+    return app_list_ordinal_;
+  }
   const ExtensionSyncData& extension_sync_data() const {
     return extension_sync_data_;
   }
 
  private:
   // Convert an AppSyncData back out to a sync structure.
   void PopulateAppSpecifics(sync_pb::AppSpecifics* specifics) const;
 
   // Populate this class from sync inputs.
   void PopulateFromAppSpecifics(
       const sync_pb::AppSpecifics& specifics);
   void PopulateFromSyncData(const syncer::SyncData& sync_data);
 
   ExtensionSyncData extension_sync_data_;
   syncer::StringOrdinal app_launch_ordinal_;
   syncer::StringOrdinal page_ordinal_;
+  syncer::StringOrdinal app_list_ordinal_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_APP_SYNC_DATA_H_