Make the Chrome Web Store Icon Syncable

chrome/browser/extensions/extension_sorting.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_EXTENSION_SORTING_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SORTING_H_
 #pragma once
 
 #include <string>
 
@@ skipping 12 matching lines @@
 
   // Properly initialize ExtensionSorting internal values that require
   // |extension_ids|.
   void Initialize(const ExtensionPrefs::ExtensionIdSet& extension_ids);
 
   // Resolves any conflicts the might be created as a result of syncing that
   // results in two icons having the same page and app launch ordinal. After
   // this is called it is guaranteed that there are no collisions of NTP icons.
   void FixNTPOrdinalCollisions();
 
+  // This ensures that the extension has valid ordinals, and if it doesn't then
+  // properly initialize them.
+  void EnsureValidOrdinals(const std::string& extension_id);
+
   // Updates the app launcher value for the moved extension so that it is now
   // located after the given predecessor and before the successor.
   // Empty strings are used to indicate no successor or predecessor.
   void OnExtensionMoved(const std::string& moved_extension_id,
                         const std::string& predecessor_extension_id,
                         const std::string& successor_extension_id);
 
   // Get the application launch ordinal for an app with |extension_id|. This
   // determines the order in which the app appears on the page it's on in the
   // New Tab Page (Note that you can compare app launch ordinals only if the
@@ skipping 103 matching lines @@
   // The StringOrdinal is the page ordinal and the AppLaunchOrdinalMap is the
   // contents of that page.
   typedef std::map<
       StringOrdinal, AppLaunchOrdinalMap, StringOrdinalLessThan> PageOrdinalMap;
   PageOrdinalMap ntp_ordinal_map_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionSorting);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SORTING_H_